muffler

nouns

a tubular acoustic device inserted in the exhaust system that is designed to reduce noise
muffler, silencer
is derived from
muffle
a scarf worn around the neck
muffler
is a type of (narrower)
a garment worn around the head or neck or shoulders for warmth or decoration
scarf
a device that decreases the amplitude of electronic, mechanical, acoustical, or aerodynamic oscillations
damper, muffler
is derived from
muffle