Nouns

(n)mufflea kiln with an inner chamber for firing things at a low temperature

Verbs

(v)smother, stifle, strangle, muffle, represssuppress in order to conceal or hide“smother a yawn”, “muffle one's anger”, “strangle a laugh”, “repress a cry of fear”
(v)muffle, mute, dull, damp, dampen, tone downdeaden (a sound or noise), especially by wrapping