- silencer - short tube attached to the muzzle of a gun that deadens the sound of firing
--1 is a kind of tube, tubing
Derived form: verb silence1 - silencer, muffler - a tubular acoustic device inserted in the exhaust system that is designed to reduce noise
--2 is a kind of acoustic device
--2 is a part of exhaust, exhaust systemDerived form: verb silence1