单词 | rev |
释义 | rev (once / 184 pages) nv Rev your engine at a stoplight if you want to race the car next to you. On second thought, don’t — to rev is to crank the engine without going anywhere. Also, a rev is one complete rotation of a motor. Rev, as a verb or a noun, is a shortened form of revolution. As a noun, it’s a rotation of the motor or the number of rotations in a minute. The word has been around since the early 20th century, following the invention of the automobile. Rev can be used for any internal combustion engine, but it's most often used for the zooming sound of a car engine. Rev and revolution come from the Late Latin revolutionem, "a revolving." WORD FAMILYrev: revs, revved, revving USAGE EXAMPLESTo better understand this approach I spoke with the Rev. William Barber II, president of the North Carolina chapter of the NAACP. Washington Post(Jan 01, 2017) “We’re just hoping to raise awareness about people experiencing homelessness,” said the Rev. Andrew Bales, the mission’s chief executive. Los Angeles Times(Jan 01, 2017) The 89-year-old activist and wife of the Rev. Martin Luther King Jr. looks back on her life. Washington Post(Dec 27, 2016) 1n rate of revolution of a motor the engine was doing 6000 revs Syn|Hyper revolutions per minute, rpm rate a magnitude or frequency relative to a time unit 2v increase the number of rotations per minute rev up an engine Syn|Hyper rev up increase make bigger or more |
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