sharp - noun

a musical notation indicating one half step higher than the note named

a long thin sewing needle with a sharp point

sharp - adjective

• keenly and painfully felt; as if caused by a sharp edge or point
• having or made by a thin edge or sharp point; suitable for cutting or piercing
• (of a musical note) raised in pitch by one chromatic semitone
• (of something seen or heard) clearly defined
• ending in a sharp point
• having or demonstrating ability to recognize or draw fine distinctions
• marked by practical hardheaded intelligence
• harsh
• having or emitting a high-pitched and sharp tone or tones
• extremely steep
• very sudden and in great amount or degree
• quick and forceful

sharp - adverb

• changing suddenly in direction and degree

sharp - thesaurus

abrupt   acuate   acute   acutely   astute   crisp   discriminating   incisive   keen   knifelike   needlelike   penetrating   penetrative   piercing   precipitous   sharply   shrewd   shrill   tart