noun Date: 1678 something placed at or forming a mouth, a part (as of an instrument) that goes in the mouth or to which the mouth is applied, 3. one that expresses or interprets another's views ; spokesman , a criminal lawyer
MOUTHPIECE
Meaning of MOUTHPIECE in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012