muffler

definition: a device that decreases the amplitude of electronic, mechanical, acoustical, or aerodynamic oscillations
example:
speech part: noun
synonyms: damper
definition: a scarf worn around the neck
example:
speech part: noun
synonyms:
definition: a tubular acoustic device inserted in the exhaust system that is designed to reduce noise
example:
speech part: noun
synonyms: silencer

How muffler is being used?