Definiciones
1.VerbTo make damp or moist; to make moderately wet.
2.VerbTo become damp or moist.
3.VerbTo lessen; to dull; to make less intense (said of emotions and non-physical things)."We won't let the bad news dampen our spirits."
4.VerbTo suppress vibrations (mechanical) or oscillations (electrical) by converting energy to heat (or some other form of energy).
5.VerbTo become damped or deadened.
6.Verb↑ Due to confusion with the similar-looking verb damp, overgeneralization from the nearby sense of "to lessen or to dull", and/or conflation of transitive "damp" with intransitive "dampen", "dampen" is increasingly used in nontechnical contexts as a synonym for "damp", especially in the case of "dampened" versus "damped". However, this usage is still considered incorrect in technical contexts.