Definitions
1.adjectiveHaving a slightly low temperature; mildly or pleasantly cold.
2.adjectiveAllowing or suggesting heat relief."Linen has made cool and breathable clothing for millennia."
3.adjectiveOf a color, in the range of violet to green."If you have a reddish complexion, you should mainly wear cool colors."
4.adjectiveOf a person, not showing emotion; calm and in control of oneself.
5.adjectiveUnenthusiastic, lukewarm, skeptical."His proposals had a cool reception."
6.adjectiveCalmly audacious."In control as always, he came up with a cool plan."
7.adjectiveApplied facetiously to a sum of money, commonly as if to give emphasis to the largeness of the amount.
8.adjectiveOf a person, knowing what to do and how to behave; considered popular by others.
9.adjectiveIn fashion, part of or fitting the in crowd; originally hipster slang.
10.adjectiveOf an action, all right; acceptable; that does not present a problem."Is it cool if I sleep here tonight?"
11.adjectiveOf a person, not upset by circumstances that might ordinarily be upsetting."I'm completely cool with my girlfriend leaving me."
12.adjectiveQuietly impudent, defiant, or selfish; deliberately presuming: said of persons and acts.
13.nounAnything which cools.
14.nounAn insulated bin or box used with ice or freezer packs to keep food or beverages cold while picnicking or camping.
15.nounA device for refrigerating dead bodies in a morgue.
16.nounA mixed drink, especially one served chilled."They served wine coolers in the afternoon."
17.nounA prison.
18.nounA cold deck.
19.nounA bouncer or doorman.