fink vs scab

fink and scab both are nouns.

Word	Noun	Adjective	Verb	Adverb
fink	Yes	No	Yes	No
scab	Yes	No	Yes	No

As verbs, fink and scab are synonyms defined as:

Other synonyms of fink include blackleg, rat.

fink (noun)	scab (noun)
someone acting as an informer or decoy for the police	the crustlike surface of a healing skin lesion
	someone who works (or provides workers) during a strike

fink (verb)	scab (verb)
confess to a punishable or reprehensible deed, usually under pressure	form a scab
take the place of work of someone on strike	take the place of work of someone on strike