sympathetic strike vs sympathy strike

sympathetic strike and sympathy strike both are nouns.

Word	Noun	Adjective	Verb	Adverb
sympathetic strike	Yes	No	No	No
sympathy strike	Yes	No	No	No

As nouns, sympathetic strike and sympathy strike are synonyms defined as:

sympathetic strike and sympathy strike: a strike in support of other workers who are on strike; a strike not resulting from direct grievances against the workers' employer

sympathetic strike (noun)	sympathy strike (noun)
a strike in support of other workers who are on strike; a strike not resulting from direct grievances against the workers' employer	a strike in support of other workers who are on strike; a strike not resulting from direct grievances against the workers' employer