acquaintance vs worker

acquaintance and worker both are nouns.

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

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

Other hypernyms of acquaintance include actor, doer.

acquaintance (noun)	worker (noun)
personal knowledge or information about someone or something	sterile member of a colony of social insects that forages for food and cares for the larvae
a person with whom you are acquainted	a person who works at a specific occupation
a relationship less intimate than friendship	a member of the working class (not necessarily employed)
	a person who acts and gets things done