appointee vs worker

appointee and worker both are nouns.

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

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

Other hypernyms of appointee include actor, doer.

appointee (noun)	worker (noun)
an official who is appointed	sterile member of a colony of social insects that forages for food and cares for the larvae
a person who is appointed to a job or position	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