Definition
To accelerate; to increase speed.
In Context
- "The car sped up as it went around the corner."
Also Said As
- pick up speed
Opposite In Meaning
- hold up
- let up
- slow
- slow down
- slow up
- immobilize
- stop
- decelerate
- put the brakes on
- rein in
- retard
- unaccelerate
See Also
- immediately
- quickly
- rush