v. To go faster than before; also, to make go faster. The car speeded up when it reached the country. Push in the throttle to speed up the engine.
Compare: PICK UP 12 .
Antonym: SLOW DOWN.
v. To go faster than before; also, to make go faster. The car speeded up when it reached the country. Push in the throttle to speed up the engine.
Compare: PICK UP 12 .
Antonym: SLOW DOWN.
American idioms English vocabulary. Английский словарь американских идиом. 2012