step up vs come to the fore

step up and come to the fore both are verbs.

Word	Noun	Adjective	Verb	Adverb
step up	No	No	Yes	No
come to the fore	No	No	Yes	No

As verbs, step up and come to the fore are synonyms defined as:

Other synonyms of step up include come forward, come out, step forward, step to the fore.

step up (verb)	come to the fore (verb)
increase in extent or intensity	make oneself visible; take action
speed up
make oneself visible; take action