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| sharp·en [ shrpən ] (past and past participle sharp·ened, present participle sharp·en·ing, 3rd person present singular sharp·ens) |
verb |
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1. transitive and intransitive verb become or make sharper: to become sharp or sharper, or make something sharp or sharper
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2. transitive verb improve something: to improve something so that it is more efficient or stylish than before
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 sharp·en·er noun |
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