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NECESSARY
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I. (noun)
Sense 1
Meaning:
Anything indispensable
Example:
a place where the requisites of water fuel and fodder can be obtained
Synonyms:
essential; necessary; necessity; requirement; requisite
Classified under:
Nouns denoting natural objects (not man-made)
Hypernyms ("necessary" is a kind of...):
thing (a separate and self-contained entity)
Hyponyms (each of the following is a kind of "necessary"):
desideratum (something desired as a necessity)
must (a necessary or essential thing)
need; want (anything that is necessary but lacking)
II. (adjective)
Sense 1
Meaning:
Unavoidably determined by prior circumstances
Example:
the necessary consequences of one's actions
Classified under:
Similar:
inevitable (incapable of being avoided or prevented)
Sense 2
Meaning:
Absolutely essential
Classified under:
Similar:
essential; indispensable (absolutely necessary; vitally necessary)
incumbent (necessary (for someone) as a duty or responsibility; morally binding)
needed; needful; required; requisite (necessary for relief or supply)
obligatory (required by obligation or compulsion or convention)
Also:
obligatory (morally or legally constraining or binding)
essential (basic and fundamental)
indispensable (not to be dispensed with; essential)
Attribute:
necessity (the condition of being essential or indispensable)
Antonym:
unnecessary (not necessary)
Derivation:
necessity (anything indispensable)
necessity (the condition of being essential or indispensable)
Context examples:
Borrelidin inhibits translation by binding to 4 sites that are necessary for threonyl-tRNA synthetase to function.
(Scientists Discover Antibiotic Mechanism, NIH)
If we have been kind to her, she is now quite as necessary to us.
(Mansfield Park, by Jane Austen)
An element necessary for normal nerve, muscle, and cardiac function, calcium as the citrate salt helps to maintain calcium balance and prevent bone loss when taken orally.
(Calcium Citrate, NCI Thesaurus)
An element or mineral necessary for normal nerve, muscle, and cardiac function, calcium as the gluconate salt helps to maintain calcium balance and prevent bone loss when taken orally.
(Calcium gluconate, NCI Thesaurus)
Phases or points in the cell cycle at which a cell is prevented from progressing into the next phase of the cycle unless certain necessary and sufficient cellular conditions exist.
(Cell Cycle Checkpoint, NCI Thesaurus)
But with this, neither the author nor the public have any other concern than as some observation is necessary upon those parts of the work which thirteen years have made comparatively obsolete.
(Northanger Abbey, by Jane Austen)
Material produced by living organisms; it can be a necessary constituent of, or product of an organismal process.
(Body Fluid or Substance, NCI Thesaurus)
It now became necessary for the party to consider what was best to be done, as to their general situation.
(Persuasion, by Jane Austen)
Kidney transplantation, on the other hand, is necessary when these patients reach terminal stages of renal failure, an expected chronic complication of MMA.
(Elevated hormone flags liver problems in mice with methylmalonic acidemia, National Institutes of Health)
The UGR researcher warns that it is necessary to differentiate between the study of lying in a laboratory and in real life.
(The most reliable scientific model to date for detecting when a person is lying, based on thermography, University of Granada)
