definition of
sharp

[1] #1 sharp s. [crisp] (of something seen or heard) clearly defined; "a sharp photographic image"; "the sharp crack of a twig"; "the crisp snap of dry leaves underfoot". wn

[2] #2 sharp s. [astute, shrewd] marked by practical hardheaded intelligence; "a smart businessman"; "an astute tenant always reads the small print in a lease"; "he was too shrewd to go along with them on a road that could lead only to their overthrow". wn

[3] #3 sharp s. [shrill] having or emitting a high-pitched and sharp tone or tones ; "a shrill whistle"; "a shrill gaiety". wn

[4] #4 sharp s. [abrupt, precipitous] extremely steep; "an abrupt canyon"; "the precipitous rapids of the upper river"; "the precipitous hills of Chinese paintings"; "a sharp drop". wn

[5] #5 sharp a. keenly and painfully felt; as if caused by a sharp edge or point; "a sharp pain"; "sharp winds". wn