What does muffle mean?
To muffle is to reduce the clarity or volume of a sound, or to cover something so that sound, cold, or heat is less able to pass through. The word is especially familiar from expressions such as muffling a voice, when someone speaks quietly to prevent others from hearing, and from describing the way curtains, clothing, or enclosed spaces reduce sound. A muffled voice may suggest secrecy, privacy, reluctance, or simply a soft speaking style, while muffled surroundings can create a sense of warmth, isolation, or enclosure. The verb also has a broader physical sense of wrapping oneself up against the cold. Its familiar association with vehicles comes from the related noun muffler, a device that reduces engine noise. In ordinary use, “muffle” is vivid and accessible, and it communicates both the act of making something less audible and the resulting impression of subdued or concealed sound.
To make a sound less audible or distinct, or to speak in a subdued voice.
"The heavy curtains muffled the sounds from the street."
Commonly used with voice, sound, noise, or noise-related subjects.
To wrap or cover oneself or something, especially to keep out cold or heat.
"They muffled themselves in thick woollen scarves."
This sense is somewhat literary but is well established in British and US English.
A muffled or indistinct sound.
"From behind the door came only a muffle of conversation."
This noun sense is less common than the verb.
From a muffler's original sense of a warm covering to today's familiar image of a voice lowered just enough to be mysterious.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does muffle come from?
The word comes through Middle English from Old French moufler, meaning “to wrap up” or “cover,” related to Old French moufle, a dark woolen cloth or covering. The English verb originally emphasized covering and enclosing, which developed into the modern senses of reducing sound and protecting against cold. The related noun muffler originally referred to a covering, and later came to denote a device that silences or reduces noise.
Related word forms
How muffle is actually used
The word is common in both formal and informal English. It often suggests that a sound or voice is deliberately made less distinct, whether for privacy, warmth, comfort, or expressive effect.
Easily confused with muffle
To muffle something is to reduce its sound or cover it, whereas a muffler is a device or part designed to reduce noise, often on a vehicle.