Difference between Deaden and Dampen

DEADEN vs DAMPEN: VERB

Convert (metallic mercury) into a grey powder consisting of minute globules, as by shaking with chalk or fatty oil
Make less lively, intense, or vigorous; impair in vigor, force, activity, or sensation
Become lifeless, less lively, intense, or active; lose life, force, or vigor
Make vague or obscure or make (an image) less visible
Cut a girdle around so as to kill by interrupting the circulation of water and nutrients
To become less lively; to diminish (by itself).
To render less lively; to diminish; to muffle.
Lessen the momentum or velocity of
Make vapid or deprive of spirit

To make vapid or spiritless.
To make as dead; to impair in vigor, force, activity, or sensation; to lessen the force or acuteness of; to blunt
To lessen the velocity or momentum of; to retard.
To deprive of gloss or brilliancy; to obscure.
To render impervious to sound, as a wall or floor; to deafen.

To kill; especially, to kill (trees) by girdling.
To deprive of gloss or brilliancy: as, to deaden gilding by a coat of size.
Lose life, force, or vigor
To make insipid, flat, or stale: said of wine or beer.
To make impervious to sound, as a floor.
To retard; hinder; lessen the velocity or momentum of: as, to deaden a ship's way (that is, to retard her progress).
To make dead (in a figurative sense); render less sensitive, active, energetic, or forcible; impair the sensitiveness or the strength of; dull; weaken: as, to deaden sound; to deaden the force of a ball; to deaden the sensibilities.

Keep in check (a fire)
Check
Suppress or constrain so as to lessen in intensity
To put a check or damper upon; make weak or dull; dim; deaden. See damp.
To make damp or humid; apply moisture to; wet slightly; damp: as, the grass was dampened by a slight shower; to dampen clothes for ironing.

Suffocate, Stifle, Desensitize, Anaesthetise, Attenuate, Constrict, Deafen, Anesthetize, Tone down, Girdle, Mute, Blunt, Damp, Dampen, Muffle

Diminish, Hinder, Hamper, Tone down, Mute, Wash, Moisten, Dull, Break, Deaden, Muffle, Damp, Soften, Weaken, Stifle

Abrade, Induce, Stifle, Anaesthetise, Attenuate, Constrict, Deafen, Anesthetize, Tone down, Girdle, Mute, Blunt, Damp, Dampen, Muffle

Diminish, Hinder, Hamper, Tone down, Mute, Wash, Moisten, Dull, Break, Deaden, Muffle, Damp, Soften, Weaken, Stifle

Mormon church control and deaden the lives of many of my family members.
An underlay of adequate material to deaden objectionable noises, covered by a waterproof runner shall be used.
Alcohol - initially, alcohol can appear to deaden pain and help sleep.
To deaden their fear they ate the sandwiches they had brought.
God in it, calls us from apathies that benumb and deaden the soul.
He runs with cotton stuffed in both ears to deaden distracting sounds.
Chemical validation of trypanothione synthetase: a potential deaden goal for weak trypanosomiasis.
This helps deaden the sound through walls and between floor levels.
ANT: Soothe, compose, quiet, allay, pacify, still, repress, deaden, tranquillize.
This acts to naturally deaden the ball on contact.