WordWeb Online

1. Smother or suppress
   "dampen your curiosity";
   - stifle
    
2. Make moist
   "The dew dampened the meadows";
   - moisten, wash
    
3. Deaden (a sound or noise), especially by wrapping
   - muffle, mute, dull, damp, tone down
    
4. Reduce the amplitude (of oscillations or waves)
    
5. Make vague, obscure or make (an image) less visible
   - deaden, damp
    
6. Check; keep in check (a fire)
    
7. Lessen in force or effect
   "dampen a shock";
   - damp, soften, weaken, break

Derived forms: dampens, dampening, dampened

Type of: blunt, check, conquer, curb, deaden, delay, inhibit, retard, soften, stamp down, subdue, suppress, weaken, wet

Encyclopedia: Dampen