Definition of sharp noun from the Oxford Advanced Learner's Dictionary



    BrE BrE//ʃɑːp//
    ; NAmE NAmE//ʃɑːrp//
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  1. 1 (music) a note played a semitone / half step higher than the note that is named. The written symbol is (♯) It's a difficult piece to play, full of sharps and flats. opposite flat compare natural
  2. 2sharps [plural] (medical) things with a sharp edge or point, such as needles and syringes the safe disposal of sharps sharps injuries
  3. Word OriginOld English sc(e)arp, of Germanic origin; related to Dutch scherp and German scharf.
See the Oxford Advanced American Dictionary entry: sharp