1. (noun) distance travelled per unit time

• speed

1. (noun) distance travelled per unit time

• airspeed
• angular velocity
• c
• light speed
• speed of light
• escape velocity
• groundspeed
• hypervelocity
• muzzle velocity
• peculiar velocity
• radial velocity
• steerageway
• terminal velocity

1. (noun) distance travelled per unit time

• rate

1. (noun) distance travelled per unit time

• accelerate
• quicken
• speed
• speed up
• accelerate
• speed
• speed up
• belt along
• bucket along
• cannonball along
• hasten
• hie
• hotfoot
• pelt along
• race
• rush
• rush along
• speed
• step on it
• hurry
• speed
• travel rapidly
• zip
• rapid
• speedy
• speed