Having a thin edge or a fine point suitable for or capable of cutting or piercing. Having clear form and detail: a sharp photographic image. Terminating in an edge or a point: sharp angular cliffs; a sharp nose. Clearly and distinctly set forth: sharp contrasts in behavior. Abrupt or acute: a sharp drop; a sharp turn. Intellectually penetrating; astute. Marked by keenness and accuracy of perception: sharp hearing. Crafty or deceitful, as in business dealings: sharp selling practices. Vigilant; alert: kept a sharp lookout for shoplifters. Briskly or keenly cold and cutting: a sharp wind. Harsh or biting in tone or character: sharp criticism. Fierce or impetuous; violent: a sharp temper; a sharp assault. Intense; severe: a sharp pain. Sudden and shrill: a sharp whistle. Sudden and brilliant or dazzling: a sharp flash of lightning. Strongly affecting the senses of smell and taste: a sharp pungent odor; a sharp cheese. Composed of hard angular particles: sharp sand. Music Raised in pitch by a semitone. Music Being above the proper pitch. Music Having the key signature in sharps. Informal Attractive or stylish: a sharp jacket. See Synonyms at fashionable. In a sharp manner: hit me sharp on the brow. Punctually; exactly: at three o'clock sharp. Music Above the true or proper pitch. Music A sign (\u266f) used to indicate that a note is to be raised by a half step.