mouthpiece vs pipe

mouthpiece and pipe both are nouns.

Word	Noun	Adjective	Verb	Adverb
mouthpiece	Yes	No	No	No
pipe	Yes	No	Yes	No

mouthpiece (noun)	pipe (noun)
the aperture of a wind instrument into which the player blows directly	a long tube made of metal or plastic that is used to carry water or oil or gas etc.
the tube of a pipe or cigarette holder that a smoker holds in the mouth	a tube with a small bowl at one end; used for smoking tobacco
an acoustic device; the part of a telephone into which a person speaks	the flues and stops on a pipe organ
(especially boxing) equipment that protects an athlete's mouth	a tubular wind instrument
a part that goes over or into the mouth of a person	a hollow cylindrical shape
a spokesperson (as a lawyer)