outcaste vs worker

outcaste and worker both are nouns.

Word	Noun	Adjective	Verb	Adverb
outcaste	Yes	Yes	No	No
worker	Yes	No	No	No

As nouns, worker is a hypernym of outcaste; that is, worker is a word with a broader meaning than outcaste:

Other hypernyms of outcaste include actor, doer.

outcaste (noun)	worker (noun)
a person belonging to no caste	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

outcaste (adjective)	worker (adjective)
not belonging to or having been expelled from a caste and thus having no place or status in society