fetch vs come up

fetch is a noun but come up is not a noun.

Word	Noun	Adjective	Verb	Adverb
fetch	Yes	No	Yes	No
come up	No	No	Yes	No

fetch (noun)	come up (noun)
the action of fetching

fetch (verb)	come up (verb)
go or come after and bring or take back	result or issue
remove	start running, functioning, or operating
be sold for a certain price	gather or bring together
	gather (money or other resources) together over time
	bring forth, usually something desirable
	come up, of celestial bodies
	come to the surface
	move toward, travel toward something or somebody or approach something or somebody
	move upward
	get something or somebody for a specific purpose
	originate or come into being
	be mentioned