surge vs come up

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

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

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

Other hypernyms of surge include arise, go up, lift, move up, rise, uprise.

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

surge: rise or heave upward under the influence of a natural force such as a wave
come up: move upward

Other hypernyms of surge include arise, go up, lift, move up, rise, uprise.

surge (noun)	come up (noun)
a sudden or abrupt strong increase
a sudden forceful flow
a large sea wave

surge (verb)	come up (verb)
see one's performance improve	result or issue
rise rapidly	start running, functioning, or operating
rise and move, as in waves or billows	gather or bring together
rise or move forward	gather (money or other resources) together over time
rise or heave upward under the influence of a natural force such as a wave	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