muffle

Noun

• a kiln with an inner chamber for firing things at a low temperature

Verb

• deaden (a sound or noise), especially by wrapping

• conceal or hide
  • smother a yawn
    
  • muffle one's anger
    
  • strangle a yawn
    

Related words

• Synonyms: 
  mute , dull , damp , dampen , tone down , smother , stifle , strangle , repress