mestizo vs worker

mestizo and worker both are nouns.

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

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

mestizo: a person of mixed racial ancestry (especially mixed European and Native American ancestry)
worker: a person who acts and gets things done

Other hypernyms of mestizo include actor, doer.

mestizo (noun)	worker (noun)
a person of mixed racial ancestry (especially mixed European and Native American ancestry)	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