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English definition of “muffle”

muffle

verb [T]  /ˈmʌf·əl/ us  
to make a sound quieter and less clear: Ted and I looked at each other with open mouths and muffled our laughs in our sleeves.
muffled
adjective [not gradable]  /ˈmʌf·əld/ us  
I could hear muffled voices next door, but couldn’t make out any words.
(Definition of muffle from the Cambridge Academic Content Dictionary © Cambridge University Press)
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