Mouthpiece
Part of speech: noun
Definition: A part of any device that functions in or near the mouth, especially of a telephone or musical instrument A spokesman who speaks on behalf of someone else A lawyer for the defense
Example sentence: The writer may very well serve a movement of history as its mouthpiece, but he cannot of course create it.
Mouth
Part of speech: verb
Definition: To speak about something.To make the actions of speech, without producing sound.To pick up or handle with the lips or mouth, but not chew or swallow.
Part of speech: noun
Definition: The opening of a creature through which food is ingested.The end of a river out of which water flows.An outlet, aperture or orifice.A loud or overly talkative person.
Example sentence: Wine comes in at the mouth And love comes in at the eye; That's all we shall know for truth Before we grow old and die.