pipe vs mouthpiece

pipe and mouthpiece both are nouns.

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

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