Rev British English, Rev. American English (also Revd British English)
(Reverend) a title used before the name of a minister of the Christian church:
Rev D Macleod

[TahlilGaran] Dictionary of Contemporary English ▲

I. rev¹ /rev/ (also rev up) verb (past tense and past participle revved, present participle revving) [intransitive and transitive]
if you rev an engine, or if an engine revs, you make it work faster
rev up phrasal verb informal
if you rev up a system or organization, or if it revs up, it becomes more active
rev up for
They are revving up for one of the biggest fund-raising events ever organized.
rev something ↔ up
Investors keep putting money in U.S. companies, revving up the economy even more.

[TahlilGaran] Dictionary of Contemporary English ▲

II. rev² noun [countable]
[Date: 1900-2000; Origin: revolution]
informal a complete turn of a wheel or engine part, used as a unit for measuring the speed of an engine Synonym : revolution

[TahlilGaran] Dictionary of Contemporary English ▲

rev
noun
ADJ. high | low The engine is almost silent at low revs.
engine
VERB + REV do On average the engine does 4,000 revs per minute.
REV + NOUN counter
PHRASES revs a/per minute
 ⇒ See REVOLUTION

[TahlilGaran] Collocations Dictionary ▲

REV
Reverend 
Reverse 
Revolution

[TahlilGaran] Acronyms and Abbreviations Dictionary ▲