computing vs iterate

computing is a noun but iterate is not a noun.

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

computing (noun)	iterate (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)	iterate (verb)
	run or be performed again
	to say, state, or perform again