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

     

    sharp

     adverb
    adverb
    BrE BrE//ʃɑːp//
     
    ; NAmE NAmE//ʃɑːrp//
     
     
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    exactly
  1. 1used after an expression for a time of day to mean ‘exactly’ Please be here at seven o'clock sharp.
  2. left/right
  3. 2(British English) sharp left/right turning suddenly to the left or right
  4. music
  5. 3 (sharper, no superlative) above the correct pitch (= how high or low a note sounds) opposite flat
  6. Word Origin Old English sc(e)arp, of Germanic origin; related to Dutch scherp and German scharf.
See the Oxford Advanced American Dictionary entry: sharp