computer science vs server

computer science and server both are nouns.

Word	Noun	Adjective	Verb	Adverb
computer science	Yes	No	No	No
server	Yes	No	No	No

computer science (noun)	server (noun)
the branch of engineering science that studies (with the aid of computers) computable processes and structures	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