step up

Verb

• make oneself visible; take action
  • Young people should step to the fore and help their peers
    

• speed up
  • let's rev up production
    

• increase in extent or intensity
  • The Allies escalated the bombing
    

Related words

• Synonyms: 
  come to the fore , step forward , come forward , step to the fore , come out , rev up , escalate , intensify
• Antonyms: 
  de-escalate , weaken , step down