rev up
To increase the speed of an engine, especially that of a stationary motor car.
The huge Rolls-Royce engine revved up. Then the back wheels spun furiously, and clouds of smoke filled the air.
ADJ.
backwards, civil, green, light, peaceful
The peaceful rev of the engine soothed him as he drove through the countryside.
VERB + REV
exercise, help, knew, married, rights, subscribe, time
The charity helped rev up support for women's rights in the community.
REV + NOUN
allan's, john, king, king's, luther, martin, mr, salary
Martin Luther King Jr. delivered his famous speech at the 1963 March on Washington.
PREP.
about, in, in, on, up
The mechanic revved up the engine to check if it was running properly.