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English definition of “blue”


adjective     /bluː/
COLOUR A1 being the same colour as the sky when there are no clouds : a dark blue jacket Common coloursLess common colours
SAD informal sad Feeling sad and unhappy
SEX about sex : a blue joke / movie → See also black and blue, once in a blue moonRelating to sex and sexual desireRude and cheeky
(Definition of blue adjective from the Cambridge Learner's Dictionary © Cambridge University Press)

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