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English definition of “nag”

nag

verb [I or T]     /næɡ/ (-gg-)
to criticize or complain often in an annoying way: [+ obj + to infinitive ] My mum's always nagging me to get my hair cut. If she'd only stop nagging at me, I might actually help. I'm always nagging him about his diet.ComplainingDisapproving and criticizingDamaging reputation
(Definition of nag verb from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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