come up vs pull together

come up and pull together both are verbs.

Word	Noun	Adjective	Verb	Adverb
come up	No	No	Yes	No
pull together	No	No	Yes	No

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

Other hypernyms of come up include collect, garner, gather.

come up (verb)	pull together (verb)
result or issue	assemble or get together
start running, functioning, or operating
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