n.
Function: verb
Inflected Form: revved ; rev · ving
Date: 1920
transitive verb
1 a : to step up the number of revolutions per minute of ― often used with up < rev up the engine> b : INCREASE ― used with up < rev up production>
2 : to drive or operate especially at high speed ― often used with up
3 : to make more active or effective ― used with up < revving up the economy>
4 : to stir up : EXCITE ― usually used with up < revved up the kids before bedtime>
intransitive verb
1 : to operate at an increased speed of revolution ― usually used with up
2 : to increase in amount or activity ― usually used with up <the campaign revved up>
3 : to become more excited especially in anticipation ― usually used with up <the partygoers were revving up>