computer science vs access

computer science and access both are nouns.

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

computer science (noun)	access (noun)
the branch of engineering science that studies (with the aid of computers) computable processes and structures	the act of approaching or entering
	a way of entering or leaving
	(computer science) the operation of reading or writing stored information
	the right to enter
	the right to obtain or make use of or take advantage of something (as services or membership)
	a code (a series of characters or digits) that must be entered in some way (typed or dialed or spoken) to get the use of something (a telephone line or a computer or a local area network etc.)

computer science (verb)	access (verb)
	reach or gain access to
	obtain or retrieve from a storage device; as of information on a computer