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English definition of “smart”

smart

adjective [before noun] (QUICK)    /smɑːt/ US  /smɑːrt/
done quickly with a lot of force or effort : She gave him a smart smack on the bottom . We'll have to work at a smart pace if we're going to finish on time .Hurrying and doing things quicklyBusy and active smartness     /ˈsmɑːt.nəs/ US  /ˈsmɑːrt-/ noun [U] UK
(Definition of smart adjective (QUICK) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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