Noun

• S: (n) muffle (a kiln with an inner chamber for firing things at a low temperature)
• direct hypernym / inherited hypernym / sister term

Verb

• S: (v) smother, stifle, strangle, muffle, repress (suppress in order to conceal or hide) "smother a yawn"; "muffle one's anger"; "strangle a laugh"; "repress a cry of fear"
• S: (v) muffle, mute, dull, damp, dampen, tone down (deaden (a sound or noise), especially by wrapping)