step up

verbs

increase in extent or intensity
"The Allies escalated the bombing"
escalate, intensify, step up
is derived from
step-up
speed up
"let's rev up production"
rev up, step up
make oneself visible; take action
"Young people should step to the fore and help their peers"
come forward, come out, come to the fore, step forward, step to the fore, step up