What does muffler mean?
A muffler is most commonly a device fitted to a vehicle or machine to reduce the sound of its exhaust or operation, especially the familiar metal component at the end of a car’s exhaust pipe. In British and American English, it is also an informal or regional word for a scarf or cloth wrapped around the neck for warmth. The word can therefore refer to something that suppresses sound or something that helps protect the wearer from cold. Today, the mechanical sense dominates in everyday use, especially in automotive, repair, and engineering contexts. The older clothing sense survives most strongly in regional speech, literary writing, and descriptions of winter clothing. The term is useful not only for identifying a familiar part of a vehicle but also for illustrating how one word can develop both a technical meaning and a traditional social or everyday meaning.
nounA device fitted to a vehicle or machine to reduce the noise of its exhaust or operation. In older and regional usage, a muffler can also mean a scarf or cloth wrapped around the neck for warmth.
- A device that reduces the noise of a vehicle's exhaust or another machine's operation.
- A scarf or cloth worn or wrapped around the neck, especially for warmth.
"The mechanic replaced the cracked exhaust muffler, and the engine suddenly became much quieter."
"The mechanic replaced the cracked exhaust muffler, and the engine suddenly became much quieter."
"She pulled her wool muffler up around her ears before leaving the house."
The plural is used when referring to multiple devices or, less commonly, multiple neck coverings.
"The shop specializes in exhaust systems and mufflers for older cars."
One muffler silences a car engine; another can keep your neck warm.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does muffler come from?
The word developed through Old French moufle, meaning a glove or mitten, and Medieval Latin muffla. In Middle English, muffler came to denote a covering for the neck, while the later sound- and exhaust-silencing sense developed through the related verb muffle. Related words include muffle, muffled, muffling, and muff.
How muffler is actually used
The mechanical sense is common in both British and American English, although “silencer” is especially frequent in British English. The clothing sense is older and now sounds somewhat dated or regional, though it remains readily understood.
Easily confused with muffler
A muffler is a noun naming a device that reduces sound, whereas muffle is a verb meaning to make a sound less audible or to wrap something around something.