3. (adj)crisp, sharp (of something seen or heard) clearly defined
"a sharp photographic image"; "the sharp crack of a twig"; "the crisp snap of dry leaves underfoot"
5. (adj)acute, discriminating, incisive, keen, knifelike, penetrating, penetrative, piercing, sharp having or demonstrating ability to recognize or drawfine distinctions
"an acute observer of politics and politicians"; "incisive comments"; "icy knifelike reasoning"; "as sharp and incisive as the stroke of a fang"; "penetrating insight"; "frequent penetrative observations"
6. (adj)astute, sharp, 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"
7. (adj)sharp, sharp-worded, tart harsh
"sharp criticism"; "a sharp-worded exchange"; "a tart remark"
8. (adj)shrill, sharp having or emitting a high-pitched and sharptone or tones
"a shrill whistle"; "a shrill gaiety"
9. (adj)abrupt, precipitous, sharp extremely steep "an abrupt canyon"; "the precipitous rapids of the upper river"; "the precipitous hills of Chinese paintings"; "a sharp drop"
10. (adj)sharp keenly and painfully felt; as if caused by a sharpedge or point "a sharp pain"; "sharp winds"
11. (adj)sharp having or made by a thin edge or sharp point; suitable for cutting or piercing
"a sharp knife"; "a pencil with a sharp point"
12. (adj)sharp (of a musical note) raised in pitch by one chromatic semitone "C sharp"
13. (adj)sharp very sudden and in greatamount or degree "a sharp drop in the stock market"
15. (adverb)sharply, sharp, acutely changing suddenly in direction and degree "the road twists sharply after the light"; "turn sharp left here"; "the visor was acutely peaked"; "her shoes had acutely pointed toes"