Definitions
1.AdjectiveOf a mildly low temperature."I like cool weather the most 'cause it's not too hot to wear a jacket but I won't be too cold in my shorts."
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.AdjectiveNot showing emotion; calm and in control of oneself."Be cool. There's no need to panic."
5.AdjectiveUnenthusiastic; lukewarm; skeptical."His proposals had a cool reception."
6.AdjectiveCalmly audacious.
7.AdjectiveApplied facetiously to a sum of money, commonly as if to give emphasis to the largeness of the amount.
8.AdjectiveKnowing what to do and how to behave; behaving with effortless and enviable style and panache; considered popular by others.
9.AdjectiveFashionable; trendy; hip.
10.AdjectiveAll right; acceptable; good."Is it cool if I sleep here tonight?"
11.AdjectiveVery interesting or exciting."I think astronomy is really cool."
12.AdjectiveFollowed by with: able to tolerate."I'm completely cool with my girlfriend leaving me."
13.AdjectiveOf a pair of people, Having good relations."We're cool, right?"
14.NounA moderate or refreshing state of cold; moderate temperature of the air between hot and cold; coolness."in the cool of the morning"
15.NounA calm temperament.
16.NounThe property of being cool, popular or in fashion.
17.VerbTo lose heat, to get colder."I like to let my tea cool before drinking it so I don't burn my tongue."
18.VerbTo make cooler, less warm.
19.VerbTo become less intense, e.g. less amicable or passionate."Relations cooled between the USA and the USSR after 1980."
20.VerbTo make less intense, e.g. less amicable or passionate.
21.VerbTo kill, murder.
22.VerbTo relax, hang out.