mouthpiece vs telephone

mouthpiece and telephone both are nouns.

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

mouthpiece (noun)	telephone (noun)
the aperture of a wind instrument into which the player blows directly	electronic equipment that converts sound into electrical signals that can be transmitted over distances and then converts received signals back into sounds
the tube of a pipe or cigarette holder that a smoker holds in the mouth	transmitting speech at a distance
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)

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