Knap

Pronunciation: năp

n.	1.	A protuberance; a swelling; a knob; a button; hence, rising ground; a summit. See Knob, and Knop. The highest part and knap of the same island. - Holland.
v. t.	1.	To bite; to bite off; to break short. [imp. & p. p. Knapped ; p. pr. & vb. n. Knapping.] He will knap the spears apieces with his teeth. - Dr. H. More. He breaketh the bow, and knappeth the spear in sunder. - Ps. xlvi. 9 (Book of Common Prayer.
	2.	To strike smartly; to rap; to snap.
v. i.	1.	To make a sound of snapping.
n.	1.	A sharp blow or slap.

Verb	1.	knap - strike sharply; "rap him on the knuckles" Synonyms: rap
	2.	knap - break a small piece off from; "chip the glass"; "chip a tooth" Synonyms: break off, chip, cut off