REV

n. & v. colloq.

--n. (in pl.) the number of revolutions of an engine per minute (running at 3,000 revs).

--v. (revved, revving)

1. intr. (of an engine) revolve; turn over.

2 tr. (also absol.; often foll. by up) cause (an engine) to run quickly.

Phrases and idioms:

rev counter revolution counter.

Etymology: abbr.