come up vs get going

come up and get going both are verbs.

Word	Noun	Adjective	Verb	Adverb
come up	No	No	Yes	No
get going	No	No	Yes	No

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

Other hypernyms of come up include go, start.

come up (verb)	get going (verb)
result or issue	start to be active
start running, functioning, or operating	begin or set in motion
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