waitress vs server

waitress and server both are nouns.

Word	Noun	Adjective	Verb	Adverb
waitress	Yes	No	Yes	No
server	Yes	No	No	No

As nouns, server is a hypernym of waitress; that is, server is a word with a broader meaning than waitress:

Other hypernyms of waitress include waiter.

waitress (noun)	server (noun)
a woman waiter	utensil used in serving food or drink
	(computer science) a computer that provides client stations with access to files and printers as shared resources to a computer network
	a person whose occupation is to serve at table (as in a restaurant)
	(court games) the player who serves to start a point

waitress (verb)	server (verb)
serve as a waiter or waitress in a restaurant