Noun step up has 1 sense
  1. increase, step-up - the act of increasing something; "he gave me an increase in salary"
    --1 is a kind of change of magnitude
    --1 has particulars:
     addition; advance, rise; appreciation; surge, upsurge; augmentation; amplification; expansion, enlargement; escalation; maximization, maximisation, maximation; exaggeration; expansion, expanding upon; accumulation, accrual, accruement; inclusion; aggrandizement, aggrandisement, elevation; strengthening; intensification; intensification; split, stock split, split up
    Derived form: verb step up1
,Verb step up has 3 senses
  1. escalate, intensify, step up - increase in extent or intensity; "The Allies escalated the bombing"
    --1 is one way to increase
    Derived form: noun step-up1
    Sample sentences:
    Somebody ----s
    Somebody ----s something
    Something ----s something
  2. rev up, step up - speed up; "let's rev up production"
    --2 is one way to increase
    Sample sentence:
    Somebody ----s something
  3. come to the fore, step forward, come forward, step up, step to the fore, come out - make oneself visible; take action; "Young people should step to the fore and help their peers"
    --3 is one way to act, move
    Sample sentences:
    Something ----s
    Somebody ----s
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