UK:*UK and possibly other pronunciationsUK and possibly other pronunciations/ˈmʌflər/US:USA pronunciation: IPA and respellingUSA pronuncation: IPA/ˈmʌflɚ/ ,USA pronunciation: respelling(muflər)

WordReference Random House Learner's Dictionary of American English © 2020
muf•fler /ˈmʌflɚ/USA pronunciation   n. [countable]
  1. Clothinga scarf worn around the neck for warmth.
  2. Automotivea device for deadening sound:With the muffler loose, the car rumbled noisily down the street.

WordReference Random House Unabridged Dictionary of American English © 2020
muf•fler  (muflər),USA pronunciation n. 
  1. Clothinga scarf worn around one's neck for warmth.
  2. Automotiveany of various devices for deadening sound, as the sound of escaping gases of an internal-combustion engine.
  3. anything used for muffling.
  4. Heraldry[Armor.]a mittenlike glove worn with a mail hauberk.
  • muffle + -er1 1525–35

Collins Concise English Dictionary © HarperCollins Publishers::
muffler /ˈmʌflə/ n
  1. a thick scarf, collar, etc
  2. US Canadian any device designed to reduce noise, esp the tubular device containing baffle plates in the exhaust system of a motor vehicle
    Also called (in Britain and certain other countries): silencer
'muffler' also found in these entries (note: many are not synonyms or translations):

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