mouthpiece

nouns

a part that goes over or into the mouth of a person
"the mouthpiece of a respirator"
mouthpiece
is a part of
a breathing device for administering long-term artificial respiration
inhalator, respirator
is a type of (narrower)
an man-made opening; usually small
aperture
an acoustic device; the part of a telephone into which a person speaks
mouthpiece
is a part of
electronic equipment that converts sound into electrical signals that can be transmitted over distances and then converts received signals back into sounds
"I talked to him on the telephone"
phone, telephone, telephone set
is a type of (narrower)
a device for amplifying or transmitting sound
acoustic device
a spokesperson (as a lawyer)
mouth, mouthpiece
(especially boxing) equipment that protects an athlete's mouth
gumshield, mouthpiece
the tube of a pipe or cigarette holder that a smoker holds in the mouth
mouthpiece
is a part of
a tube that holds a cigarette while it is being smoked
cigarette holder
is a part of
a tube with a small bowl at one end; used for smoking tobacco
pipe, tobacco pipe
is a type of (narrower)
conduit consisting of a long hollow object (usually cylindrical) used to hold and conduct objects or liquids or gases
tube, tubing
the aperture of a wind instrument into which the player blows directly
embouchure, mouthpiece