In music, sharp, di├Ęse, or diesis means higher in pitch and the sharp symbol raises a note by a half tone. Intonation may be flat, sharp, or both, successively or simultaneously. More specifically, in musical notation, sharp means "higher in pitch by a semitone," and has an associated symbol, which may be found in key signatures or as an accidental, as may flats.

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  1. The symbol ♯, placed after the name of a note in the key signature or before a note on the staff to indicate that the note is to be played a semitone higher.
    The pitch pipe sounded out a perfect F♯ (F sharp).
    ''Transposition frequently is harder to read because of all the sharps and flats on the staff.
  2. A note that is played a semitone higher than usual; denoted by the name of the note that is followed by the symbol ♯.
  3. A note that is sharp in a particular key.
    The piece was difficult to read after it had been transposed, since in the new key many notes were sharps.
  4. The scale having a particular sharp note as its tonic.
    Beethoven's "Moonlight Sonata" is written in C♯ minor (C sharp minor.)
  5. Something that is sharp.
    Place sharps in the specially marked red container for safe disposal.
  6. A sharp tool or weapon.
  7. A hypodermic syringe.
  8. A scalpel or other edged instrument used in surgery.
  9. A dishonest person; a cheater.
    The casino kept in the break room a set of pictures of known sharps for the bouncers to see.
  10. Part of a stream where the water runs very rapidly.
  11. A sewing needle with a very slender point, more pointed than a blunt or a between.
  12. middlings
  13. An expert.
  14. A sharpie (member of Australian gangs of the 1960s and 1970s).


  1. To raise the pitch of a note half a step making a natural note a sharp.
    That new musician must be tone deaf: he sharped half the notes of the song!
  2. To play tricks in bargaining; to act the sharper.


  1. Able to cut easily.
  2. Intelligent.
  3. Terminating in a point or edge; not obtuse or rounded.
    a sharp hill
    a face with sharp features
  4. Higher than usual by one semitone (denoted by the symbol after the name of the note).
  5. Higher in pitch than required.
  6. Having an intense, acrid flavour.''
  7. Sudden and intense.
  8. Illegal or dishonest.
  9. Keenly or unduly attentive to one's own interests; shrewd.
    a sharp dealer; a sharp customer
  10. Exact, precise, accurate; keen.
  11. Offensive, critical, or acrimonious.
  12. Stylish or attractive.
  13. Observant; alert; acute.
  14. Forming a small angle; forming an angle of less than ninety degrees.
  15. Steep; precipitous; abrupt.
    a sharp ascent or descent; a sharp turn or curve
  16. Said of as extreme a value as possible.
  17. tactical; risky
  18. Piercing; keen; severe; painful.
    a sharp pain
    the sharp and frosty winter air
  19. Eager or keen in pursuit; impatient for gratification.
    a sharp appetite
  20. Fierce; ardent; fiery; violent; impetuous.
  21. Composed of hard, angular grains; gritty.
    sharp sand
  22. Uttered in a whisper, or with the breath alone; aspirated; unvoiced.


  1. To a point or edge; piercingly; eagerly; sharply.
  2. Exactly.
    I'll see you at twelve o'clock sharp.
  3. In a higher pitch than is correct or desirable.
    I didn't enjoy the concert much because the tenor kept going sharp on the high notes.

The above text is a snippet from Wiktionary: sharp
and as such is available under the Creative Commons Attribution/Share-Alike License.

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