partner vs worker

partner and worker both are nouns.

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

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

Other hypernyms of partner include actor, doer.

partner (noun)	worker (noun)
an associate in an activity or endeavor or sphere of common interest	sterile member of a colony of social insects that forages for food and cares for the larvae
a person's partner in marriage	a person who works at a specific occupation
a person who is a member of a partnership	a member of the working class (not necessarily employed)
	a person who acts and gets things done

partner (verb)	worker (verb)
provide with a partner
act as a partner