muffler

noun

muf·​fler ˈmə-flər 

1

a

: a scarf worn around the neck

b

: something that hides or disguises

2

: a device to deaden noise

especially : one forming part of the exhaust system of an automotive vehicle

mufflered

ˈmə-flərd 

adjective

Examples of muffler in a Sentence

Recent Examples on the Web

The active exhaust system has been given a unique more muted acoustic tune thanks to sophisticated double gas-flow mixing inside the rear muffler. — New Atlas, 2 Oct. 2026

Under the new law, only those that use liquid fuel require a muffler. — Madison Smalstig, Sacbee.com, 1 Oct. 2026

This year, he was ticketed on four occasions for alleged violations including failing to display license plates, not having his registration card and proof of insurance, and for not having a working muffler, according to court records. — Hannah Fry, Los Angeles Times, 15 Sep. 2026

MnDOT officials say no signs are needed for law enforcement officers to enforce the state’s muffler and motor vehicle noise limits laws. — Mary Divine, Twin Cities, 26 Aug. 2026

Word History

First Known Use

circa 1536, in the meaning defined at sense 1a

Kids Definition

muffler

noun

muf·​fler ˈməf-lər 

1

: a scarf worn to protect the neck

2

: something that deadens noises

especially : a device attached to the exhaust system of an automobile