WordWeb Online

1. Act or move at high speed
   "We have to hasten!"
   - rush, hurry, look sharp, festinate [archaic], 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, speed up, accelerate

Derived forms: hastening, hastened, hastens

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