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Definition of cool noun from the Oxford Advanced Learner's Dictionary

cool

noun
 
/kuːl/
 
/kuːl/
Idioms
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  1. the cool
    [singular] cool air or a cool place
    • the cool of the evening
    Topics Weatherb1
  2. [uncountable] (informal) the quality of being fashionable, attractive or impressive
    • all the cool of high fashion
    • Her new look is the ultimate in cool.
    • In 60s Hollywood, Steve McQueen was the King of Cool.
  3. Word OriginOld English cōl (noun), cōlian (verb), of Germanic origin; related to Dutch koel, also to cold.
Idioms
keep your cool
  1. (informal) to remain calm in a difficult situation
    • He kept his cool on the convention floor when he was heckled by a young Republican.
lose your cool
  1. (informal) to become angry or excited
    • I lost my cool and shouted at them.
See cool in the Oxford Advanced American Dictionary
biodegradable
adjective
 
 
From the Topic
The environment
C1
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