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English definition of “smart”

smart

adjective [-er/-est only] (INTELLIGENT)   /smɑrt/
intelligent , or able to think and understand quickly in difficult situations : Jed’s smart enough to get A’s in this class . Her daughter is smarter than she is. Ginny is a very smart kid . Quitting that job was a smart move . Smart devices are ones that operate using computers : smart phones a smart card
(Definition of smart adjective (INTELLIGENT) from the Cambridge Academic Content Dictionary © Cambridge University Press)
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