cool

1 :  to become cool :  lose heat or warmth placed the pie in the window to cool —sometimes used with off or down

2 :  to lose ardor or passion His anger cooled.

1 :  to make cool :  impart a feeling of coolness to cooled the room with a fan —often used with off or down A swim cooled us off a little.

2a :  to moderate the heat, excitement, or force of :  calm cooled her growing angerb :  to slow or lessen the growth or activity of —usually used with off or down wants to cool off the economy without freezing it — Newsweek

1 :  a cool time, place, or situation the cool of the evening

2a :  absence of excitement or emotional involvement :  detachment … must surrender his fine cool and enter the closed crazy world of suicide … — Wilfrid Sheedb :  poise, composure The player lost his cool and began yelling at the referee.

3 :  hipness

:  in a casual and nonchalant manner play it cool

1 :  somewhat cold :  not warm a cool day a cool room

2 :  not letting or keeping in heat cool clothes

3 :  ³calm 2 She is cool in a crisis.

4 :  not interested or friendly:  He was cool to my idea.

5 :  fashionable, stylish, or attractive in a way that is widely approved of

6 :  very good excellent

:  to make or become less warm

1 :  a time or place that is not warm the cool of the evening

2 :  a calm state of mind Keep your cool.

:  to lose passion :  become calm —sometimes used with off or down the time elapsing…is such that a reasonable man thus provoked would have cooled — W. R. LaFave and A. W. Scott, Jr.