stay-at-home vs worker

stay-at-home and worker both are nouns.

Word	Noun	Adjective	Verb	Adverb
stay-at-home	Yes	Yes	No	No
worker	Yes	No	No	No

As nouns, worker is a hypernym of stay-at-home; that is, worker is a word with a broader meaning than stay-at-home:

stay-at-home: a person who seldom goes anywhere; one not given to wandering or travel
worker: a person who acts and gets things done

Other hypernyms of stay-at-home include actor, doer.

stay-at-home (noun)	worker (noun)
a person who seldom goes anywhere; one not given to wandering or travel	sterile member of a colony of social insects that forages for food and cares for the larvae
	a person who works at a specific occupation
	a member of the working class (not necessarily employed)
	a person who acts and gets things done

stay-at-home (adjective)	worker (adjective)
not given to travel