dampen
     v 1: smother or suppress; "Stifle your curiosity" [syn: {stifle}]
          [ant: {stimulate}]
     2: make moist; "The dew moistened the meadows" [syn: {moisten},
         {wash}]
     3: deaden (a sound or noise), especially by wrapping [syn: {muffle},
         {mute}, {dull}, {damp}, {tone down}]
     4: reduce the amplitude (of oscillations or waves)
     5: make vague or obscure or make (an image) less visible;
        "muffle the message" [syn: {deaden}, {damp}]
     6: check; keep in check (a fire)
     7: lessen in force or effect; "soften a shock"; "break a fall"
        [syn: {damp}, {soften}, {weaken}, {break}]
Source: WordNet® 2.0