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English definition of “razor-sharp”

razor-sharp

adjective (CLEVER)    /ˌreɪ.zəˈʃɑːp/ US  /-zɚˈʃɑːrp/
If you describe someone or someone's mind as razor-sharp, you mean that that person thinks very clearly and quickly: She's got a razor-sharp mind.IntelligencePerceptivePerceptiveUsing the eyesIntelligence
(Definition of razor-sharp adjective (CLEVER) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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