telephone vs mouthpiece

telephone and mouthpiece both are nouns.

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

telephone (noun)	mouthpiece (noun)
electronic equipment that converts sound into electrical signals that can be transmitted over distances and then converts received signals back into sounds	the aperture of a wind instrument into which the player blows directly
transmitting speech at a distance	the tube of a pipe or cigarette holder that a smoker holds in the mouth
	an acoustic device; the part of a telephone into which a person speaks
	(especially boxing) equipment that protects an athlete's mouth
	a part that goes over or into the mouth of a person
	a spokesperson (as a lawyer)

telephone (verb)	mouthpiece (verb)
get or try to get into communication (with someone) by telephone