biff vs clout

biff and clout both are nouns.

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

As nouns, biff and clout are synonyms defined as:

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

biff (noun)	clout (noun)
(boxing) a blow with the fist	(boxing) a blow with the fist
	a short nail with a flat head; used to attach sheet metal to wood
	special advantage or influence
	a target used in archery

biff (verb)	clout (verb)
strike, usually with the fist	strike hard, especially with the fist