come up vs collect

come up is not a noun while collect is a noun.

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

As verbs, collect is a hypernym of come up; that is, collect is a word with a broader meaning than come up:

Other hypernyms of come up include garner, gather, pull together.

As verbs, collect is a hypernym of come up; that is, collect is a word with a broader meaning than come up:

Other hypernyms of come up include accumulate, amass, compile, hoard, pile up, roll up.

come up (noun)	collect (noun)
	a short prayer generally preceding the lesson in the Church of Rome or the Church of England

come up (adjective)	collect (adjective)
	payable by the recipient on delivery

come up (verb)	collect (verb)
result or issue	assemble or get together
start running, functioning, or operating	get or bring together
gather or bring together	get or gather together
gather (money or other resources) together over time	call for and obtain payment of
bring forth, usually something desirable	gather or collect
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

come up (adverb)	collect (adverb)
	make a telephone call or mail a package so that the recipient pays