silencer vs tubing

silencer and tubing both are nouns.

Word	Noun	Adjective	Verb	Adverb
silencer	Yes	No	No	No
tubing	Yes	No	No	No

As nouns, tubing is a hypernym of silencer; that is, tubing is a word with a broader meaning than silencer:

silencer: short tube attached to the muzzle of a gun that deadens the sound of firing
tubing: conduit consisting of a long hollow object (usually cylindrical) used to hold and conduct objects or liquids or gases

Other hypernyms of silencer include tube.

silencer (noun)	tubing (noun)
a tubular acoustic device inserted in the exhaust system that is designed to reduce noise	conduit consisting of a long hollow object (usually cylindrical) used to hold and conduct objects or liquids or gases
short tube attached to the muzzle of a gun that deadens the sound of firing