program vs computer science

program and computer science both are nouns.

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

program (noun)	computer science (noun)
a performance (or series of performances) at a public presentation	the branch of engineering science that studies (with the aid of computers) computable processes and structures
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

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