blackleg vs scab

blackleg and scab both are nouns.

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

As nouns, blackleg and scab are synonyms defined as:

blackleg and scab: someone who works (or provides workers) during a strike

Other synonyms of blackleg include rat, strikebreaker.

As verbs, blackleg and scab are synonyms defined as:

Other synonyms of blackleg include fink, rat.

blackleg (noun)	scab (noun)
someone who works (or provides workers) during a strike	the crustlike surface of a healing skin lesion
	someone who works (or provides workers) during a strike

blackleg (verb)	scab (verb)
take the place of work of someone on strike	form a scab
	take the place of work of someone on strike