rev

/rɛv/
noun
  1. A revolution of an engine's crankshaft, especially when referring to engine speed.
    • You can hear the revs drop when you let off the gas.
    • The car's engine reached 4,000 revs before he shifted gears.
    • The mechanic checked the revs with a tachometer.
  2. A short form of 'reverend', used as a title for a member of the clergy.
    • We invited Rev. Johnson to the ceremony.
    • The letter was addressed to Rev. Thomas.
    • Rev. Smith will lead the service this Sunday.
verb
  1. To increase the speed of an engine, especially by pressing the accelerator.
    • She revved the car to warm it up on a cold morning.
    • He revved the engine before pulling out of the driveway.
    • The driver revved the motorcycle loudly at the stoplight.
  2. To increase the level of activity, excitement, or energy of something.
    • We need to rev our marketing efforts to attract more customers.
    • The coach revved up the team with a motivational speech.
    • The music revved the crowd into a frenzy.
Antonyms