Longman Dictionary of Contemporary English homepage

Language: Old English
Origin: col

cool

1 adjective
     
Related topics: Colours
cool1 W3 comparative cooler, superlative coolest
1

temperature

low in temperature, but not cold, often in a way that feels pleasant:
She swam out into the cool water.
The evening air was cool.
Relax in the sun with a cool drink.
the cooler weather of September
2

clothing

clothing that is cool is made of thin material so that you do not become too hot:
a cool cotton dress
3

calm

calm and not nervous, upset, or excited
keep/stay cool
his ability to keep cool in a crisis
She looks efficient and as cool as a cucumber.
Outwardly she is cool, calm and collected.
a cool customer (=someone who always behaves calmly)
Keep a cool head (=stay calm).
4

approval

informal very attractive, fashionable, interesting etc in a way that people admire - used in order to show approval:
She's pretty cool.
You look cool in denim.
Cool bike!
'I'm thinking of studying abroad.' 'Really? Cool.'
5

agreement

spoken used to say that you agree with something, that you understand it, or that it does not annoy you:
OK, Ryan, that's cool, I can do it.
'I just have to go, you know.' 'It's all right, it's cool.'
'I'm finished.' 'Cool.'
cool about
My mum was cool about whatever I wore.
something is cool with somebody
Is Friday cool with you guys?
somebody is cool with something
'Do you want to come over and watch a video tonight?' 'I'm cool with that.'
6

not friendly

behaving in a way that is not as friendly as you expect:
My proposal met with a cool response.
Luke gave her a cool look.
7

colour

CC a cool colour is one, such as blue or green, that makes you think of cool things
8

a cool million/hundred thousand etc

informal a surprisingly large amount of money:
He earns a cool half million every year.
coolness noun [uncountable]
the coolness of the nights
coolly adverb:
She nodded coolly and walked out.

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