Meaning of “blue” in the English Dictionary

"blue" in English

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uk /bluː/ us /bluː/

blue adjective (COLOUR)

A1 of the colour of the sky without clouds on a bright day, or a darker or lighter type of this:

a faded blue shirt
pale blue eyes
Her hands were blue with cold (= slightly blue because of the cold).

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blue adjective (SEXUAL)

showing or mentioning sexual activity in a way that offends many people:

a blue joke
a blue movie/film
His humour is a bit too blue for my tastes.
noun [ U ] uk /ˈbluː.nəs/ us /ˈbluː.nəs/


uk /bluː/ us /bluː/

blue noun (COLOUR)

A2 [ C or U ] a blue colour


blue noun (ARGUMENT)

[ C ] Australian English informal an argument with someone:

He had a blue with his wife in the middle of the street.


(Definition of “blue” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"blue" in American English

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blueadjective, noun [ C/U ]

us /blu/

blue adjective, noun [ C/U ] (COLOR)

(of) the color of the sky on a clear, bright day:

She has blue eyes.


blueadjective [ -er/-est only ]

us /blu/

blue adjective [ -er/-est only ] (SAD)

sad; unhappy:

I don’t know what’s wrong – I just feel blue.

(Definition of “blue” from the Cambridge Academic Content Dictionary © Cambridge University Press)