mouthpiece vs cigarette holder

mouthpiece and cigarette holder both are nouns.

Word	Noun	Adjective	Verb	Adverb
mouthpiece	Yes	No	No	No
cigarette holder	Yes	No	No	No

mouthpiece (noun)	cigarette holder (noun)
the aperture of a wind instrument into which the player blows directly	a tube that holds a cigarette while it is being smoked
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)