surge vs soar up

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

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

As verbs, surge and soar up are synonyms defined as:

Other synonyms of surge include soar, soar upwards, zoom.

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

surge (verb)	soar up (verb)
see one's performance improve	rise rapidly
rise rapidly
rise and move, as in waves or billows
rise or move forward
rise or heave upward under the influence of a natural force such as a wave