lover vs worker

lover and worker both are nouns.

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

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

Other hypernyms of lover include actor, doer.

lover (noun)	worker (noun)
a person who loves someone or is loved by someone	sterile member of a colony of social insects that forages for food and cares for the larvae
an ardent follower and admirer	a person who works at a specific occupation
a significant other to whom you are not related by marriage	a member of the working class (not necessarily employed)
	a person who acts and gets things done