gun barrel

English Thesaurus

1. a tube through which a bullet travels when a gun is fired (noun.artifact)

hypernym	:	tube, tubing,
definition	:	conduit consisting of a long hollow object (usually cylindrical) used to hold and conduct objects or liquids or gases (noun.artifact)

part meronym	:	gun,
definition	:	a weapon that discharges a missile at high velocity (especially from a metal tube or barrel) (noun.artifact)