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cool

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adjective cool pronunciation in American English /kul/ 
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adjectivecool
comparativecooler
superlativecoolest
  1. 1
    rather cold, often in a pleasant way

    Tomorrow it will be cloudy and cool everywhere.

    The night air was still and beautifully cool.

    The water was wonderfully cool and refreshing.

    Store the wine in a cool dry place.

    1. a.
      food that is cool is no longer hot

      When the cookies are cool, brush them with melted chocolate.

    2. b.
      cool clothes prevent you from feeling too hot

      He put on a cool cotton shirt and a pair of shorts.

  2. 2
    impressive because of being fashionable or attractive

    one of America's coolest young designers

    It's not considered cool to wear a helmet.

    1. a.
      used for emphasizing how good someone or something is

      I met this really cool girl last night.

      Cara's taking a really cool art class at the community college.

    2. b.
      spoken used for agreeing to something or saying that something would be convenient

      "We could go to a movie." "Cool."

      Any time after five would be cool.

  3. 3
    calm and relaxed

    a cool and calm atmosphere

    her cool handling of the situation

    her cool way of handling the situation

  4. 4
    not friendly or enthusiastic

    The senator got a cool reception.

    a cool ruthless manner

    cool to:

    The Bush administration officials have been cool to the idea.

  5. 5
    [only before noun] informal used with an amount of money for emphasizing how large it is

    He ended up with a cool $50,000.

derived word

coolness

noun [uncountable]

We sat and enjoyed the coolness of the shade.

There was a definite coolness between the two men.

pre-roll

a video advertisement that appears immediately before an online video

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