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English definition of “close”

close

adjective (LACKING AIR)    /kləʊs/ US  /kloʊs/
describes weather or air conditions in which it is difficult to breathe and it is uncomfortably warm : Can I open the window ? It's very close in here.Hot and heatSultriness and humidity
(Definition of close adjective (LACKING AIR) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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