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1. Changing location rapidly
   "they were following a hoon in a speeding stolen car";
   - speed, hurrying

1. Move fast
   "The runner zipped past us at breakneck speed";
   - rush, hotfoot, hasten, hie [archaic], race, pelt along, rush along, cannonball along, bucket along, belt along, step on it, travel rapidly, hurry, zip
    
2. Move faster
   "The car sped up";
   - accelerate, speed up, quicken
    
3. Travel at an excessive or illegal velocity
   "I got a ticket for speeding"
    
4. Cause to move faster
   "He sped up the car";
   - accelerate, speed up

Derived forms: speedings

Type of: alter, change, deepen, go, intensify, locomote, modify, motion, move, movement, travel

Encyclopedia: Speeding