roll up vs come up

roll up and come up both are verbs.

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

As verbs, come up is a hyponym of roll up; that is, come up is a word with a more specific, narrower meaning than roll up:

Other hyponyms of roll up include run up, corral, collect, pull in, scrape, scrape up, scratch, chunk, lump, bale, catch, fund, fund.

roll up (verb)	come up (verb)
form a cylinder by rolling	result or issue
form into a cylinder by rolling	start running, functioning, or operating
show certain properties when being rolled	gather or bring together
make into a bundle	gather (money or other resources) together over time
close (a car window) by causing it to move up, as with a handle	bring forth, usually something desirable
arrive in a vehicle:	come up, of celestial bodies
get or gather together	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