nip off vs snip

nip off is not a noun while snip is a noun.

Word	Noun	Adjective	Verb	Adverb
nip off	No	No	Yes	No
snip	Yes	No	Yes	No

As verbs, nip off and snip are synonyms defined as:

Other synonyms of nip off include clip, nip, snip off.

nip off (noun)	snip (noun)
	the act of clipping or snipping
	a small piece of anything (especially a piece that has been snipped off)

nip off (verb)	snip (verb)
sever or remove by pinching or snipping	cultivate, tend, and cut back the growth of
	sever or remove by pinching or snipping