Learning / English Dictionary

CLASS

Pronunciation (US):

(GB):

 I. (noun) 

Sense 1

Meaning:

Education imparted in a series of lessons or meetings

Example:

flirting is not unknown in college classes

Synonyms:

class; course; course of instruction; course of study

Classified under:

Nouns denoting acts or actions

Hypernyms ("class" is a kind of...):

didactics; education; educational activity; instruction; pedagogy; teaching (the activities of educating or instructing; activities that impart knowledge or skill)

Meronyms (parts of "class"):

coursework (work assigned to and done by a student during a course of study; usually it is evaluated as part of the student's grade in the course)

lesson (a unit of instruction)

lecture; lecturing (teaching by giving a discourse on some subject (typically to a class))

class period; course session; recitation (a regularly scheduled session as part of a course of study)

Hyponyms (each of the following is a kind of "class"):

adult education (a course (via lectures or correspondence) for adults who are not otherwise engaged in formal study)

art class (a class in which you learn to draw or paint)

childbirth-preparation class (a course that teaches pregnant women to use breathing and concentration and exercise techniques to use during labor)

correspondence course (a course offered (by mail) by a correspondence school)

course of lectures (a series of lectures dealing with a subject)

directed study (a course of study that is supervised and controlled by a specialist in the subject)

elective; elective course (a course that the student can select from among alternatives)

extension course (a course offered as part of an extension service)

home study (a course of study carried out at home rather than in a classroom)

industrial arts (a course in the methods of using tools and machinery as taught in secondary schools and technical schools)

orientation; orientation course (a course introducing a new situation or environment)

propaedeutic; propaedeutics (a course that provides an introduction to an art or science (or to more advanced study generally))

refresher; refresher course (a course that reviews and updates a topic for those who have not kept abreast of developments)

required course (a course that all students are required to take)

seminar (a course offered for a small group of advanced students)

shop; shop class (a course of instruction in a trade (as carpentry or electricity))

workshop (a brief intensive course for a small group; emphasizes problem solving)

Sense 2

Meaning:

Elegance in dress or behavior

Example:

she has a lot of class

Classified under:

Nouns denoting attributes of people and objects

Hypernyms ("class" is a kind of...):

elegance (a refined quality of gracefulness and good taste)

Domain usage:

colloquialism (a colloquial expression; characteristic of spoken or written communication that seeks to imitate informal speech)

Derivation:

classy (elegant and fashionable)

Sense 3

Meaning:

People having the same social, economic, or educational status

Example:

an emerging professional class

Synonyms:

class; social class; socio-economic class; stratum

Classified under:

Nouns denoting groupings of people or objects

Hypernyms ("class" is a kind of...):

people ((plural) any group of human beings (men or women or children) collectively)

Hyponyms (each of the following is a kind of "class"):

domain; world (people in general; especially a distinctive group of people with some shared interest)

age class (people in the same age range)

agriculture (the class of people engaged in growing food)

brotherhood; fraternity; sodality (people engaged in a particular occupation)

estate; estate of the realm; the three estates (a major social class or order of persons regarded collectively as part of the body politic of the country (especially in the United Kingdom) and formerly possessing distinct political rights)

labor; labour; proletariat; working class (a social class comprising those who do manual labor or work for wages)

lower class; underclass (the social class lowest in the social hierarchy)

bourgeoisie; middle class (the social class between the lower and upper classes)

booboisie (class consisting of all those who are considered boobs)

commonality; commonalty; commons (a class composed of persons lacking clerical or noble rank)

peasantry (the class of peasants)

demimonde (a class of woman not considered respectable because of indiscreet or promiscuous behavior)

underworld (the criminal class)

yeomanry (class of small freeholders who cultivated their own land)

caste (a social class separated from others by distinctions of hereditary rank or profession or wealth)

caste ((Hinduism) a hereditary social class among Hindus; stratified according to ritual purity)

upper class; upper crust (the class occupying the highest position in the social hierarchy)

ninja (a class of 14th century Japanese who were trained in martial arts and were hired for espionage and assassinations)

firing line (the most advanced and responsible group in an activity)

immigrant class (recent immigrants who are lumped together as a class by their low socioeconomic status in spite of different cultural backgrounds)

center (politically moderate persons; centrists)

old school (a class of people favoring traditional ideas)

market (the customers for a particular product or service)

craft; trade (people who perform a particular kind of skilled work)

fair sex; woman; womanhood (women as a class)

Holonyms ("class" is a part of...):

society (an extended social group having a distinctive cultural and economic organization)

Holonyms ("class" is a member of...):

class structure (the organization of classes within a society)

Derivation:

classify (arrange or order by classes or categories)

classify (assign to a class or kind)

Sense 4

Meaning:

A collection of things sharing a common attribute

Example:

there are two classes of detergents

Synonyms:

category; class; family

Classified under:

Nouns denoting groupings of people or objects

Hypernyms ("class" is a kind of...):

accumulation; aggregation; assemblage; collection (several things grouped together or considered as a whole)

Meronyms (members of "class"):

superphylum ((biology) a taxonomic group ranking between a phylum and below a class or subclass)

Hyponyms (each of the following is a kind of "class"):

grammatical category; syntactic category ((grammar) a category of words having the same grammatical properties)

paradigm; substitution class (the class of all items that can be substituted into the same position (or slot) in a grammatical sentence (are in paradigmatic relation with one another))

brass family ((music) the family of brass instruments)

violin family ((music) the family of bowed stringed instruments)

woodwind family ((music) the family of woodwind instruments)

stamp (a type or class)

sex (either of the two categories (male or female) into which most organisms are divided)

declension (a class of nouns or pronouns or adjectives in Indo-European languages having the same (or very similar) inflectional forms)

conjugation (a class of verbs having the same inflectional forms)

denomination (a class of one kind of unit in a system of numbers or measures or weights or money)

histocompatibility complex (a family of fifty or more genes on the sixth human chromosome that code for proteins on the surfaces of cells and that play a role in the immune response)

Derivation:

class; classify (arrange or order by classes or categories)

classify (assign to a class or kind)

Sense 5

Meaning:

(biology) a taxonomic group containing one or more orders

Classified under:

Nouns denoting groupings of people or objects

Hypernyms ("class" is a kind of...):

taxon; taxonomic category; taxonomic group (animal or plant group having natural relations)

Meronyms (members of "class"):

order ((biology) taxonomic group containing one or more families)

Domain category:

biological science; biology (the science that studies living organisms)

Hyponyms (each of the following is a kind of "class"):

class Schizomycetes; Schizomycetes (a former classification)

class Cyanobacteria; class Cyanophyceae; Cyanophyceae (photosynthetic bacteria found in fresh and salt water, having chlorophyll a and phycobilins; once thought to be algae: blue-green algae)

class Sarcodina; Sarcodina (characterized by the formation of pseudopods for locomotion and taking food: Actinopoda; Rhizopoda)

Actinopoda; subclass Actinopoda (heliozoans; radiolarians)

Rhizopoda; subclass Rhizopoda (creeping protozoans: amoebas and foraminifers)

Ciliata; Ciliophora; class Ciliata; class Ciliophora (class of protozoa having cilia or hairlike appendages on part or all of the surface during some part of the life cycle)

Infusoria; subclass Infusoria (in some recent classifications, coextensive with the Ciliata: minute organisms found in decomposing infusions of organic matter)

Chrysophyceae; class Chrysophyceae; class Heterokontae; Heterokontae (all the yellow-green algae having flagella of unequal length)

class Xanthophyceae; Xanthophyceae (yellow-green algae)

Bacillariophyceae; class Bacillariophyceae; class Diatomophyceae; Diatomophyceae (marine and freshwater eukaryotic algae: diatoms)

class Phaeophyceae; Phaeophyceae (brown algae; mostly marine and littoral eukaryotic algae)

class Cyclosporeae; Cyclosporeae (in more recent classifications superseded by the order Fucales)

class Euglenophyceae; Euglenophyceae (coextensive with the division Euglenophyta)

Chlorophyceae; class Chlorophyceae (algae distinguished chiefly by having flagella and a clear green color, their chlorophyll being masked little if at all by other pigments)

class Ulvophyceae; Ulvophyceae (alternative name for the class Chlorophyceae in some classifications)

Charophyceae; class Charophyceae (in some classifications: contains only the order Charales)

class Rhodophyceae; Rhodophyceae (coextensive with the Rhodophyta: red algae)

class Flagellata; class Mastigophora; Flagellata; Mastigophora (protozoa having flagella)

subclass Zoomastigina; Zoomastigina (in some classifications considered a phylum of the kingdom Protista; holozoic or saprozoic flagellates)

Phytomastigina; subclass Phytomastigina (plantlike flagellates containing chlorophyll; often considered unicellular algae)

class Cryptophyceae; Cryptophyceae (motile usually brownish-green protozoa-like algae)

class Sporozoa; Sporozoa (strictly parasitic protozoans that are usually immobile; includes plasmodia and coccidia and piroplasms and malaria parasites)

subclass Telosporidia; Telosporidia (parasitic sporozoans that form spores containing one or more infective sporozoites)

Acnidosporidia; subclass Acnidosporidia (a subclass of Sporozoa)

Cnidosporidia; subclass Cnidosporidia (single-host parasites of lower vertebrates and invertebrates)

Ascidiaceae; class Ascidiaceae (sometimes classified as an order: sea squirts)

class Thaliacea; Thaliacea (small class of free-swimming tunicates; sometimes classified as an order)

class Larvacea; Larvacea (small free-swimming tunicates; sometimes classified as an order)

Agnatha; superclass Agnatha (superclass of eel-shaped chordates lacking jaws and pelvic fins: lampreys; hagfishes; some extinct forms)

Gnathostomata; superclass Gnathostomata (comprising all vertebrates with upper and lower jaws)

class Placodermi; Placodermi (extinct group of bony-plated fishes with primitive jaws)

Chondrichthyes; class Chondrichthyes (cartilaginous fishes)

Holocephali; subclass Holocephali (chimaeras and extinct forms)

Elasmobranchii; Selachii; subclass Elasmobranchii; subclass Selachii (sharks; rays; dogfishes; skates)

Aves; class Aves ((ornithology) the class of birds)

Archaeornithes; subclass Archaeornithes (primitive reptile-like fossil birds of the Jurassic or early Cretaceous)

amphibia; class Amphibia (the class of vertebrates that live on land but breed in water; frogs; toads; newts; salamanders; caecilians)

class Reptilia; Reptilia (class of cold-blooded air-breathing vertebrates with completely ossified skeleton and a body usually covered with scales or horny plates; once the dominant land animals)

Anapsida; subclass Anapsida (oldest known reptiles; turtles and extinct Permian forms)

Lepidosauria; subclass Lepidosauria (diapsid reptiles: lizards; snakes; tuataras)

Archosauria; subclass Archosauria (a large subclass of diapsid reptiles including: crocodiles; alligators; dinosaurs; pterosaurs; plesiosaurs; ichthyosaurs; thecodonts)

subclass Synapsida; Synapsida (extinct reptiles of the Permian to Jurassic considered ancestral to mammals)

Chelicerata; superclass Chelicerata (spiders; scorpions; horseshoe crabs)

Arachnida; class Arachnida (a large class of arthropods including spiders and ticks and scorpions and daddy longlegs; have four pairs of walking legs and no wings)

superclass Myriapoda (used in some classifications to encompass the millipedes (Diplopoda) and centipedes (Chilopoda); formerly a large taxon including also the Pauropoda and Symphyla; the term Myriapoda now usually used synonymously with Diplopoda and limited to the millipedes)

class Pauropoda; Pauropoda (an obscure class of minute arthropods with branched antennae and 8 to 10 pairs of legs)

class Symphyla; Symphyla (small class of minute arthropods; unimportant except for the garden centipede)

class Tardigrada; Tardigrada (in some classifications considered a separate phylum: microscopic arachnid-like invertebrates living in water or damp moss having 4 pairs of legs and instead of a mouth a pair of stylets or needlelike piercing organs connected with the pharynx)

Chilopoda; class Chilopoda (arthropods having the trunk composed of numerous somites each bearing one pair of legs: centipedes)

class Diplopoda; class Myriapoda; Diplopoda; Myriapoda (arthropods having the body composed of numerous double somites each with two pairs of legs: millipedes)

class Mammalia; Mammalia (warm-blooded vertebrates characterized by mammary glands in the female)

Prototheria; subclass Prototheria (echidnas; platypus)

Pantotheria; subclass Pantotheria (generalized extinct mammals widespread during the Jurassic; commonly conceded to be ancestral to marsupial and placental mammals)

Metatheria; subclass Metatheria (pouched animals)

Eutheria; subclass Eutheria (all mammals except monotremes and marsupials)

class Hyalospongiae; Hyalospongiae (sponges with siliceous spicules that have six rays; choanocytes are restricted to finger-shaped chambers)

class Scyphozoa; Scyphozoa (coelenterates in which the polyp stage is absent or at least inconspicuous: jellyfishes)

class Hydrozoa; Hydrozoa (coelenterates typically having alternation of generations; hydroid phase is usually colonial giving rise to the medusoid phase by budding: hydras and jellyfishes)

Actinozoa; Anthozoa; class Actinozoa; class Anthozoa (a large class of sedentary marine coelenterates that includes sea anemones and corals; the medusoid phase is entirely suppressed)

class Nuda; Nuda (ctenophores lacking tentacles; comprises one genus: beroe)

class Tentaculata; Tentaculata (ctenophores have retractile tentacles)

class Turbellaria; Turbellaria (free-living flatworms)

class Trematoda; Trematoda (parasitic flatworms (including flukes))

Cestoda; class Cestoda (tapeworms)

Aphasmidia; class Aphasmidia; class Phasmidia; Phasmidia (one of two subgroups of Nematoda used in some classification systems)

Archiannelida; class Archiannelida (a class of Annelida)

class Oligochaeta; Oligochaeta (earthworms)

class Polychaeta; Polychaeta (marine annelid worms)

class Hirudinea; Hirudinea (hermaphroditic aquatic or terrestrial or parasitic annelids)

class Scaphopoda; Scaphopoda (small class of bilaterally symmetrical marine forms comprising the tooth shells)

class Gasteropoda; class Gastropoda; Gasteropoda; Gastropoda (snails and slugs and their relatives)

Opisthobranchia; subclass Opisthobranchia (gastropods having the gills when present posterior to the heart and having no operculum: includes sea slugs; sea butterflies; sea hares)

Amphineura; subclass Amphineura (a class of Gastropoda)

class Polyplacophora; Polyplacophora (small class of marine mollusks comprising the chitons; sometimes considered an order of the subclass Amphineura)

Bivalvia; class Bivalvia; class Lamellibranchia; class Pelecypoda; Lamellibranchia (oysters; clams; scallops; mussels)

Cephalopoda; class Cephalopoda (octopuses; squids; cuttlefish; pearly nautilus)

Dibranchia; Dibranchiata; subclass Dibranchia; subclass Dibranchiata (comprising all living cephalopods except the family Nautilidae: the orders Octopoda (octopuses) and Decapoda (squids and cuttlefish))

class Crustacea; Crustacea (class of mandibulate arthropods including: lobsters; crabs; shrimps; woodlice; barnacles; decapods; water fleas)

Malacostraca; subclass Malacostraca (largest subclass of Crustacea including most of the well-known marine, freshwater, and terrestrial crustaceans: crabs; lobsters; shrimps; sow bugs; beach flies)

Entomostraca; subclass Entomostraca (in some older classifications includes the Branchiopoda and Copepoda and Ostracoda and Cirripedia; no longer in technical use)

Branchiopoda; subclass Branchiopoda (primitive aquatic mainly freshwater crustaceans: fairy shrimps; brine shrimps; tadpole shrimps; can shrimps; water fleas)

Copepoda; subclass Copepoda (minute planktonic or parasitic crustaceans)

Ostracoda; subclass Ostracoda (seed shrimps)

Cirripedia; subclass Cirripedia (barnacles)

class Onychophora; Onychophora (enigmatic small elongated wormlike terrestrial invertebrates of damp dark habitats in warm regions; distinct from the phylum Annelida; resemble slugs with legs and are sometimes described as the missing link between arthropods and annelids)

class Hexapoda; class Insecta; Hexapoda; Insecta (insects; about five-sixths of all known animal species)

Exopterygota; Hemimetabola; subclass Exopterygota (subclass of insects characterized by gradual and usually incomplete metamorphosis)

Asteroidea; class Asteroidea (sea stars)

class Ophiuroidea; Ophiuroidea (brittle stars and basket stars)

Ophiurida; subclass Ophiurida (brittle stars)

Euryalida; subclass Euryalida (basket stars)

class Echinoidea; Echinoidea (sea urchins and sand dollars)

class Crinoidea; Crinoidea (sea lilies)

class Holothuroidea; Holothuroidea (class of echinoderms including the sea cucumbers)

Hominoidea; superfamily Hominoidea (anthropoid apes and human beings)

Channidae; class Channidae (snakeheads)

class Osteichthyes; Osteichthyes (a class of fish having a skeleton composed of bone in addition to cartilage)

Crossopterygii; subclass Crossopterygii (fishes having paired fins resembling limbs and regarded as ancestral to amphibians)

Dipnoi; subclass Dipnoi (bony fishes of the southern hemisphere that breathe by a modified air bladder as well as gills; sometimes classified as an order of Crossopterygii)

subclass Teleostei; Teleostei (large diverse group of bony fishes; includes most living species)

Anthoceropsida; class Anthoceropsida (hornworts: in some classification systems included in the class Hepaticopsida)

Bryopsida; class Bryopsida; class Musci; Musci (true mosses: bryophytes having leafy rather than thalloid gametophytes: comprises orders Andreaeales; Bryales; Dicranales; Eubryales; Sphagnales)

class Hepaticae; class Hepaticopsida; Hepaticae; Hepaticopsida (liverworts: comprises orders Anthocerotales; Jungermanniales; Marchantiales; Sphaerocarpales)

class Gymnospermae; division Gymnospermophyta; Gymnospermae; Gymnospermophyta (plants having naked seeds not enclosed in an ovary; in some systems considered a class (Gymnospermae) and in others a division (Gymnospermophyta); comprises three subdivisions (or classes): Cycadophytina (class Cycadopsida) and Gnetophytina (class Gnetopsida) and Coniferophytina (class Coniferopsida); in some classifications the Coniferophytina are divided into three groups: Pinophytina (class Pinopsida) and Ginkgophytina (class Ginkgopsida) and Taxophytina (class Taxopsida))

class Gnetopsida; Gnetophyta; Gnetophytina; Gnetopsida; subdivision Gnetophytina (gymnospermous flowering plants; supposed link between conifers and angiosperms; in some systems classified as a class (Gnetopsida) and in others as a subdivision (Gnetophytina or Gnetophyta))

class Cycadopsida; Cycadophyta; Cycadophytina; Cycadopsida; subdivision Cycadophyta; subdivision Cycadophytina (palmlike gymnosperms: includes the surviving order Cycadales and several extinct orders; possibly not a natural group; in some systems considered a class (Cycadopsida) and in others a subdivision (Cycadophytina or Cycadophyta))

class Pteridospermopsida; Pteridospermopsida (extinct gymnosperms most of Carboniferous to Jurassic: seed ferns and allies)

class Coniferopsida; Coniferophyta; Coniferophytina; Coniferopsida; subdivision Coniferophytina (cone-bearing gymnosperms dating from the Carboniferous period; most are substantial trees; includes the classes Pinopsida (subdivision Pinophytina) and Ginkgopsida (subdivision Ginkgophytina) and Taxopsida (subdivision Taxophytina) which in turn include the surviving orders Coniferales and Taxales (yews) and sometimes Ginkgoales as well as extinct orders such as Cordaitales (of the Carboniferous and Permian))

class Pinopsida; Pinophytina; Pinopsida; subdivision Pinophytina (most conifers: in some systems classified as a class (Pinopsida) and in others as a subdivision (Pinophytina); used in some classifications for one of five subdivisions of Gymnospermophyta)

class Taxopsida; subdivision Taxophytina; Taxophytina; Taxopsida (yews: in some systems classified as a class (Taxopsida) and in others as a subdivision (Taxophytina) used in some classifications for one of five subdivisions of Gymnospermophyta)

class Ginkgophytina; class Ginkgopsida; Ginkgophytina; Ginkgopsida; subdivision Ginkgophyta; subdivision Ginkgophytina (ginkgos: in some systems classified as a class and in others as a subdivision; used in some classifications for one of five subdivisions of Gymnospermophyta)

Angiospermae; Anthophyta; class Angiospermae; division Anthophyta; division Magnoliophyta; Magnoliophyta (comprising flowering plants that produce seeds enclosed in an ovary; in some systems considered a class (Angiospermae) and in others a division (Magnoliophyta or Anthophyta))

class Dicotyledonae; class Dicotyledones; class Magnoliopsida; Dicotyledonae; Dicotyledones; Magnoliopsida (comprising seed plants that produce an embryo with paired cotyledons and net-veined leaves; divided into six (not always well distinguished) subclasses (or superorders): Magnoliidae and Hamamelidae (considered primitive); Caryophyllidae (an early and distinctive offshoot); and three more or less advanced groups: Dilleniidae; Rosidae; Asteridae)

Magnoliidae; ranalian complex; subclass Magnoliidae (a group of families of trees and shrubs and herbs having well-developed perianths and apocarpous ovaries and generally regarded as the most primitive extant flowering plants; contains 36 families including Magnoliaceae and Ranunculaceae; sometimes classified as a superorder)

class Liliopsida; class Monocotyledonae; class Monocotyledones; Liliopsida; Monocotyledonae; Monocotyledones (comprising seed plants that produce an embryo with a single cotyledon and parallel-veined leaves: includes grasses and lilies and palms and orchids; divided into four subclasses or superorders: Alismatidae; Arecidae; Commelinidae; and Liliidae)

Alismatidae; subclass Alismatidae (one of four subclasses or superorders of Monocotyledones; comprises about 500 species in 14 families of aquatic and semiaquatic herbs)

Arecidae; subclass Arecidae (one of four subclasses or superorder of Monocotyledones; comprises about 6400 species in 5 families of trees and shrubs and terrestrial herbs and a few free-floating aquatics including: Palmae; Araceae; Pandanaceae and Lemnaceae)

Commelinidae; subclass Commelinidae (one of four subclasses or superorders of Monocotyledones; comprises about 19,000 species in 25 families of mostly terrestrial herbs especially of moist places including: Cyperaceae; Gramineae; Bromeliaceae; and Zingiberaceae)

Caryophyllidae; subclass Caryophyllidae (a group of families of mostly flowers having basal or central placentation and trinucleate pollen (binucleate pollen is commoner in flowering plants); contains 14 families including: Caryophyllaceae (carnations and pinks); Aizoaceae; Amaranthaceae; Batidaceae; Chenopodiaceae; Cactaceae (order Opuntiales); Nyctaginaceae; Phytolaccaceae; corresponds approximately to order Caryophyllales; sometimes classified as a superorder)

Asteridae; subclass Asteridae (a group of mostly sympetalous herbs and some trees and shrubs mostly with 2 fused carpels; contains 43 families including Campanulales; Solanaceae; Scrophulariaceae; Labiatae; Verbenaceae; Rubiaceae; Compositae; sometimes classified as a superorder)

Rosidae; subclass Rosidae (a group of trees and shrubs and herbs mostly with polypetalous flowers; contains 108 families including Rosaceae; Crassulaceae; Myrtaceae; Melastomaceae; Euphorbiaceae; Umbelliferae)

Hamamelidae; subclass Hamamelidae (a group of chiefly woody plants considered among the most primitive of angiosperms; perianth poorly developed or lacking; flowers often unisexual and often in catkins and often wind pollinated; contains 23 families including the Betulaceae and Fagaceae (includes the Amentiferae); sometimes classified as a superorder)

Dilleniidae; subclass Dilleniidae (a group of families of more or less advanced trees and shrubs and herbs having either polypetalous or gamopetalous corollas and often with ovules attached to the walls of the ovary; contains 69 families including Ericaceae and Cruciferae and Malvaceae; sometimes classified as a superorder)

Liliidae; subclass Liliidae (one of four subclasses or superorders of Monocotyledones; comprises 17 families including: Liliaceae; Alliaceae; Amaryllidaceae; Iridaceae; Orchidaceae; Trilliaceae)

class Zygomycetes; Zygomycetes (class of fungi coextensive with subdivision Zygomycota)

class Myxomycetes; Myxomycetes (the class of true slime molds; essentially equivalent to the division Myxomycota)

Acrasiomycetes; class Acrasiomycetes (cellular slime molds; in some classifications placed in kingdom Protoctista)

class Oomycetes; Oomycetes (nonphotosynthetic fungi that resemble algae and that reproduce by forming oospores; sometimes classified as protoctists)

Chytridiomycetes; class Chytridiomycetes (a class of mostly aquatic fungi; saprophytic or parasitic on algae or fungi or plants)

class Eumycetes; Eumycetes (category used in some classifications: coextensive with division Eumycota)

class Deuteromycetes; Deuteromycetes (form class; coextensive with subdivision Deuteromycota)

Basidiomycetes; class Basidiomycetes (large class of higher fungi coextensive with subdivision Basidiomycota)

Homobasidiomycetes; subclass Homobasidiomycetes (category used in some classification systems for various basidiomycetous fungi including e.g. mushrooms and puffballs which are usually placed in the classes Gasteromycetes and Hymenomycetes)

Heterobasidiomycetes; subclass Heterobasidiomycetes (category used in some classification systems for various basidiomycetous fungi including rusts and smuts)

class Hymenomycetes; Hymenomycetes (used in some classifications; usually coextensive with order Agaricales: mushrooms; toadstools; agarics; bracket fungi)

Ascomycetes; class Ascomycetes (large class of higher fungi coextensive with division Ascomycota: sac fungi)

Euascomycetes; subclass Euascomycetes (category not used in many classification systems)

class Hemiascomycetes; Hemiascomycetes (class of fungi in which no ascocarps are formed: yeasts and some plant parasites)

class Plectomycetes; Plectomycetes (class of fungi in which the fruiting body is a cleistothecium (it releases spores only on decay or disintegration))

class Pyrenomycetes; Pyrenomycetes (class of fungi in which the fruiting body is a perithecium; includes powdery mildews and ergot and Neurospora)

Discomycetes; subclass Discomycetes (a large and taxonomically difficult group of Ascomycetes in which the fleshy fruiting body is disklike or cup-shaped)

class Gasteromycetes; class Gastromycetes; Gasteromycetes; Gastromycetes (fungi in which the hymenium is enclosed until after spores have matured: puffballs; earth stars; stinkhorn fungi)

class Tiliomycetes; Tiliomycetes (category used in some systems to comprise the two orders Ustilaginales (smuts) and Uredinales (rusts))

class Filicinae; class Filicopsida; Filicinae; Filicopsida (ferns)

class Psilopsida; class Psilotatae; Psilopsida; Psilotatae (whisk ferns; comprising the family Psilotaceae or Psilotatae: vascular plants with no roots, partial if any leaf differentiation, and rudimentary spore sacs)

class Equisetatae; class Sphenopsida; Equisetatae; Sphenopsida (horsetails and related forms)

class Lycopodiate; class Lycopsida; Lycopodiate; Lycopsida (club mosses and related forms: includes Lycopodiales; Isoetales; Selaginellales; and extinct Lepidodendrales; sometimes considered a subdivision of Tracheophyta)

class Lycopodineae; Lycopodineae (alternative designation for the class Lycopsida)

Holonyms ("class" is a member of...):

phylum ((biology) the major taxonomic group of animals and plants; contains classes)

Derivation:

classify (arrange or order by classes or categories)

classify (assign to a class or kind)

Sense 6

Meaning:

A body of students who are taught together

Example:

early morning classes are always sleepy

Synonyms:

class; course; form; grade

Classified under:

Nouns denoting groupings of people or objects

Hypernyms ("class" is a kind of...):

assemblage; gathering (a group of persons together in one place)

Hyponyms (each of the following is a kind of "class"):

master class (a class (especially in music) given to talented students by an expert)

discussion section; section (a small class of students who are part of a larger course but are taught separately)

Sense 7

Meaning:

A body of students who graduate together

Example:

she was in my year at Hoehandle High

Synonyms:

class; year

Classified under:

Nouns denoting groupings of people or objects

Hypernyms ("class" is a kind of...):

assemblage; gathering (a group of persons together in one place)

Hyponyms (each of the following is a kind of "class"):

graduating class (the body of students who graduate together this year)

senior class (final grade or class in high school or college)

junior class (penultimate class in high school or college)

sophomore class (the second class in a four-year college or high school)

freshman class (the first class in college or high school)

Sense 8

Meaning:

A league ranked by quality

Example:

Princeton is in the NCAA Division 1-AA

Synonyms:

class; division

Classified under:

Nouns denoting groupings of people or objects

Hypernyms ("class" is a kind of...):

conference; league (an association of sports teams that organizes matches for its members)

Derivation:

classify (arrange or order by classes or categories)

classify (assign to a class or kind)

 II. (verb) 

Sense 1

Meaning:

Arrange or order by classes or categories

Example:

How would you classify these pottery shards--are they prehistoric?

Synonyms:

assort; class; classify; separate; sort; sort out

Classified under:

Verbs of thinking, judging, analyzing, doubting

Hypernyms (to "class" is one way to...):

categorise; categorize (place into or assign to a category)

"Class" entails doing...:

compare (examine and note the similarities or differences of)

Troponyms (each of the following is one way to "class"):

unitise; unitize (separate or classify into units)

catalog; catalogue (make an itemized list or catalog of; classify)

isolate (separate (experiences) from the emotions relating to them)

refer (think of, regard, or classify under a subsuming principle or with a general group or in relation to another)

reclassify (classify anew, change the previous classification)

size (sort according to size)

dichotomise; dichotomize (divide into two opposing groups or kinds)

pigeonhole; stamp; stereotype (treat or classify according to a mental stereotype)

group (arrange into a group or groups)

grade (determine the grade of or assign a grade to)

count; number (put into a group)

Sentence frames:

Somebody ----s something
Somebody ----s somebody

Derivation:

class (a collection of things sharing a common attribute)

Credits

 Context examples: 

He grinned when I handed it over, yet it was a grin that contained more sincere thanks than a multitude of the verbosities of speech common to the members of my own class.

(The Sea-Wolf, by Jack London)

The shutters had been opened, but the blinds were already down, with that obedience to the etiquette of death which the British woman of the lower classes always rigidly observes.

(Dracula, by Bram Stoker)

A benzothiadiazine-sulfonamide derivative belonging to the class of the thiazide diuretics.

(Methyclothiazide, NCI Thesaurus)

The physical association of each protein is divided into two classes: integral and peripheral.

(Membrane Protein, NCI Thesaurus)

A class of disorders that encompasses conditions occurring as a result of metabolic dysfunction or deviation from the normal nutritional requirements.

(Metabolism and Nutrition Disorder Class, NCI Thesaurus)

Adenylyl cyclases are membrane-associated enzymes of the lyase class that are expressed in most human tissues.

(Adenylate Cyclase, NCI Thesaurus)

Among the growing catalog of planets outside our solar system — known as exoplanets — ultrahot Jupiters have stood out as a distinct class for about a decade.

(Water Is Destroyed, Then Reborn in Ultrahot Jupiters, NASA/JPL)

Many of these exotic worlds belong to a class known as "hot Jupiters."

(Investigating the Mystery of Migrating 'Hot Jupiters', NASA)

NOTE: often denoted using a pick list from a controlled terminology such as: Recovered/resolved, recovering/ resolving, not recovered/not resolved, recovered /resolved with sequelae, fatal, or unknown. [SDTM Events class of observation]

(Adverse Event Outcome, NCI Thesaurus/CDISC)

The dominant gene class associated with SEs in T cells encoded cytokines and cytokine receptors.

(Autoimmune Disease Super-Regulators Uncovered, NIH)