informal
■ noun ( ~s ) the number of ~olutions of an engine per minute.
■ verb ( ~s , ~ving , ~ved ) increase the running speed of (an engine) by pressing the accelerator, especially while the clutch is disengaged.
informal
■ noun ( ~s ) the number of ~olutions of an engine per minute.
■ verb ( ~s , ~ving , ~ved ) increase the running speed of (an engine) by pressing the accelerator, especially while the clutch is disengaged.
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004