Sharp means having a point or edge that is good for cutting or a sudden change.(adjective)
Sharp is defined as exactly.(adverb)
An example of sharp used as an adverb is to arrive somewhere at a certain time, like two o'clock sharp.
The definition of a sharp is something with a pointed end.(noun)
An example of a sharp is a needle.
See sharp in Webster's New World College Dictionary
Origin: ME < OE scearp, akin to Ger scharf, ON skarpr < IE *(s)kerb(h)- < base *(s)ker-, to cut > shear, harvest, L caro, flesh
See sharp in American Heritage Dictionary 4
adjective sharp·er, sharp·est
Origin: Middle English scharp
Origin: , from Old English scearp; see sker-1 in Indo-European roots.
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