1. step_up - verb
· increase in extent or intensity; "The Allies escalated the bombing"
Synonym(s): escalate, intensify
Hypernym(s): increase
2. step_up - verb
· speed up; "let's rev up production"
Synonym(s): rev_up
Hypernym(s): increase
3. step_up - verb
· make oneself visible; take action; "Young people should step to the fore and help their peers"
Synonym(s): come_to_the_fore, step_forward, come_forward, step_to_the_fore, come_out
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