Accelerate

[Dave Paprocki]

To cause to move faster; to quicken the motion of;
to add to the speed of; -- opposed to retard.

[Merna]

To increase the [velocity] of something. To speed something up. To [step on] [the gas].

[Tanya Shivari]

To speed(positive [acceleration], aka acceleration) up [slow down](Negative acceleration, aka [deceleration])or change direction(aka turn)

[Tanya Shivari]

(especially of a vehicle) begin to move more quickly.

[Tanya Shivari]

Accelerate is a beautiful written [dnf smut](dream not found) [fanfic] found on [AO3].

[Mary Mallozziberg]

(of a vehicle or other physical object) begin to move more quickly.