execution vs computer science

execution and computer science both are nouns.

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

execution (noun)	computer science (noun)
putting a condemned person to death	the branch of engineering science that studies (with the aid of computers) computable processes and structures
unlawful premeditated killing of a human being by a human being
the act of performing; of doing something successfully; using knowledge as distinguished from merely possessing it
the act of accomplishing some aim or executing some order
a routine court order that attempts to enforce the judgment that has been granted to a plaintiff by authorizing a sheriff to carry it out
(law) the completion of a legal instrument (such as a contract or deed) by signing it (and perhaps sealing and delivering it) so that it becomes legally binding and enforceable
(computer science) the process of carrying out an instruction by a computer