BLUE MOON

Pronunciation (US):

(GB):

 I. (noun) 

Sense 1

Meaning:

A long time

Example:

something that happens once in blue moon almost never happens

Classified under:

Nouns denoting time and temporal relations

Hypernyms ("blue moon" is a kind of...):

age; long time; years (a prolonged period of time)

Domain usage:

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

Credits