rev

Từ điển Oxford Advanced Learner 8th

rev [rev revs revved revving] verb, noun BrE [rev] NAmE [rev]
verb (-vv-)transitive, intransitive ~ (sth) (up)
when you rev an engine or it revs, it runs quickly
•The taxi driver revved up his engine.
•I could hear the car revving outside.
Verb forms:

Word Origin:
early 20th cent.: abbreviation of ↑revolution.
 
noun (informal)
a complete turn of an engine, used when talking about an engine's speed
Syn: ↑revolution
•4 000 revs per minute
•The needle on the rev counter soared.

Word Origin:
early 20th cent.: abbreviation of ↑revolution.

Example Bank:
•The engine is almost silent at low revs.

 

• Từ đồng nghĩa / Synonyms:
  revolutions per minute, rpm, rev up