Definition of mouths:
(n) :
(anatomy) The front opening of a creature through which food is ingested.
(n) :
The end of a river out of which water flows into a sea or other large body of water; or the end of a tributary out of which water flows into a larger river.
(n) :
An outlet, aperture or orifice.
(n) :
(slang) A loud or overly talkative person.
(n) :
(slang) A gossip.
(n) :
(saddlery) The crosspiece of a bridle bit, which enters the mouth of an animal.