biff vs lick

biff and lick both are nouns.

Word	Noun	Adjective	Verb	Adverb
biff	Yes	No	Yes	No
lick	Yes	No	Yes	No

As nouns, biff and lick are synonyms defined as:

Other synonyms of biff include clout, poke, punch, slug.

biff (noun)	lick (noun)
(boxing) a blow with the fist	touching with the tongue
	(boxing) a blow with the fist
	a salt deposit that animals regularly lick

biff (verb)	lick (verb)
strike, usually with the fist	find the solution to (a problem or question) or understand the meaning of
	take up with the tongue
	pass the tongue over
	beat thoroughly and conclusively in a competition or fight