WordWeb Online

1. Act or move at high speed
   "We have to hasten!";
   - rush, hurry, look sharp, festinate [archaic], hurry up, get a move on, make haste
    
2. Move fast
   "He hastened down the hall to receive his guests";
   - rush, hotfoot, hie [archaic], speed, race, pelt along, rush along, cannonball along, bucket along, belt along, step on it, travel rapidly, hurry, zip
    
3. Speed up the progress of; facilitate
   "This should hasten the process";
   - expedite
    
4. Cause to occur rapidly
   - induce, stimulate, rush, accelerate, speed up

Derived forms: hastened, hastens, hastening

Type of: act, aid, assist, effect, effectuate, go, help, locomote, move, set up, travel