computing vs emulate

computing is a noun but emulate is not a noun.

Word	Noun	Adjective	Verb	Adverb
computing	Yes	No	No	No
emulate	No	No	Yes	No

computing (noun)	emulate (noun)
the procedure of calculating; determining something by mathematical or logical methods
the branch of engineering science that studies (with the aid of computers) computable processes and structures

computing (verb)	emulate (verb)
	compete with successfully; approach or reach equality with
	strive to equal or match, especially by imitating
	imitate the function of (another system), as by modifying the hardware or the software