mouthpiece

باللغة العربية: مَبْسَم

1. The part of a telephone that is held close to the mouth.
2. The part of a wind instrument that is held in or against the mouth.
3. A bit.
4. A mouthguard.
5. A spokesman; one who speaks on behalf of someone else. · The novel's protagonist serves as a mouthpiece for the author's political views.
6. A lawyer for the defense. (slang)

الجمع mouthpieces