Rev | Mean of rev in English Dictionary

/ˈrɛv/

• Verb
• to cause (an engine) to run more quickly
1. She sat in the car and revved the engine [=she pressed the car's accelerator when the engine was on but the car was not in gear] while she waited for us.
2. He revved up the motorcycle by making adjustments to its engine.
• to become more active
1. The campaign is revving up.
• to make (someone or something) more active or effective
1. Big business spending is revving up the economy.
2. The company is getting revved up for the launch of its new product line.
• Noun

• a complete turn of an engine part
1. a motor with a speed of 5,000 revs per minute