computer science vs program

computer science and program both are nouns.

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

computer science (noun)	program (noun)
the branch of engineering science that studies (with the aid of computers) computable processes and structures	a performance (or series of performances) at a public presentation
	a series of steps to be carried out or goals to be accomplished
	a system of projects or services intended to meet a public need
	an announcement of the events that will occur as part of a theatrical or sporting event
	a radio or television show
	(computer science) a sequence of instructions that a computer can interpret and execute
	a document stating the aims and principles of a political party
	an integrated course of academic studies

computer science (verb)	program (verb)
	arrange a program of or for
	write a computer program