Decrease and Dampen

noun

• A change downward.
  • usage: "there was a decrease in his temperature as the fever subsided"; "there was a sharp drop-off in sales"
  • synonyms: lessening, drop-off
• A process of becoming smaller or shorter.
  • synonyms: decrement
• The amount by which something decreases.
  • synonyms: decrement
• The act of decreasing or reducing something.
  • synonyms: diminution, reduction, step-down

verb

• Decrease in size, extent, or range.
  • usage: "The amount of homework decreased towards the end of the semester"; "The cabin pressure fell dramatically"; "her weight fell to under a hundred pounds"; "his voice fell to a whisper"
  • synonyms: diminish, lessen, fall
• Make smaller.
  • usage: "He decreased his staff"
  • synonyms: lessen, minify

• (v.t.) To cause to grow less; to diminish gradually; as, extravagance decreases one's means.
• (v.) A becoming less; gradual diminution; decay; as, a decrease of revenue or of strength.
• (n.) To grow less, -- opposed to increase; to be diminished gradually, in size, degree, number, duration, etc. or in strength, quality or excellence; as, they days decrease in length from June to December.
• (v.) The wane of the moon.

verb

• Smother or suppress.
  • usage: "Stifle your curiosity"
  • synonyms: stifle
• Make moist.
  • usage: "The dew moistened the meadows"
  • synonyms: moisten, wash
• Deaden (a sound or noise), especially by wrapping.
  • synonyms: muffle, mute, dull, damp, tone down
• Reduce the amplitude (of oscillations or waves. )
• Make vague or obscure or make (an image) less visible.
  • usage: "muffle the message"
  • synonyms: deaden, damp
• Check; keep in check (a fire. )
• Lessen in force or effect.
  • usage: "soften a shock"; "break a fall"
  • synonyms: damp, soften, weaken, break

• (v.t.) To make damp or moist; to make slightly wet.
• (v.t.) To depress; to check; to make dull; to lessen.
• (v.i.) To become damp; to deaden.