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English definition of “sharp”

sharp

adjective, adverb     /ʃɑːp/ US  /ʃɑːrp/
higher than the correct or stated musical note: The E string on my guitar is a bit sharp. This concerto is in the key of C sharp (= the set of musical notes a semitone higher than the one based on the note C). to sing sharp → Compare flat adjective adverb, natural adjectiveNotes of the musical scale
(Definition of sharp adjectiveadverb from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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