blue

I UK [bluː] / US [blu] adjective
Word forms "blue":
adjective blue comparative bluer superlative bluest
***

1) something that is blue is the same colour as the sky on a clear sunny day. If something is similar to this colour, you can say that it is a bluish colour

He looked at her with his pale blue eyes.

The sky was gloriously blue.

blue with cold:

My fingers were turning blue with cold.

2) informal feeling rather sad

She usually calls her mother when she's feeling blue.

3) informal old-fashioned dealing with sex in a way that some people find offensive

See:

blue movie

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until/till you are blue in the face — informal used for saying that there is no use in trying to persuade someone to do something because you will not succeed

You can say "don't do it" until you're blue in the face, but if kids want to do it, they will.

- once in a blue moon

- scream blue murder

- talk a blue streak

- turn the air blue

Derived word:
blueness
noun uncountable
II UK [bluː] / US [blu] noun
Word forms "blue":
singular blue plural blues
**

1) [countable/uncountable] the colour of the sky on a clear sunny day

The boy was dressed all in blue.

The room had been decorated using bright blues and yellows.

2) blue or Blue

[countable] a person who has played for Oxford University or Cambridge University in a sport

He was a cricket Blue at Oxford.

3) [countable] Australian an argument

•

- out of the blue

See:

boy I