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  • noun
    A fairly low temperature. (the cool of the night air)
    Calmness; composure. (he recovered his cool and then started laughing at us)
    The quality of being fashionably attractive or impressive. (all the cool of high fashion)
    Become or make less hot. (we dived into the river to cool off)
    Of or at a fairly low temperature. (it'll be a cool afternoon)
    Showing no friendliness towards a person or enthusiasm for an idea or project. (he gave a cool reception to the suggestion for a research centre)
    Fashionably attractive or impressive. (youngsters are turning to smoking because they think it makes them appear cool)
    Used to emphasize the size of an amount of money. (research for a new drug can cost a cool £50 million)


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