export vs computer science

export and computer science both are nouns.

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

export (noun)	computer science (noun)
commodities (goods or services) sold to a foreign country	the branch of engineering science that studies (with the aid of computers) computable processes and structures

export (verb)	computer science (verb)
cause to spread in another part of the world
sell or transfer abroad
transfer (electronic data) out of a database or document in a format that can be used by other programs