• enPR: mouth, IPA: /maʊθ/
• (Canada) IPA: /mʌʊθ/
• enPR: mouth, IPA: /maʊð/
• (Canada) IPA: /mʌʊθ/, /mʌʊð/

mouth (plural mouths)

1. (anatomy) The opening of a creature through which food is ingested.

   "Open your mouth and say 'aah'," directed the doctor.

2. The end of a river out of which water flows into a sea or other large body of water.

   The mouth of the river is a good place to go birdwatching in spring and autumn.

3. An outlet, aperture or orifice.

   The mouth of a cave

4. (slang) A loud or overly talkative person.

   My kid sister is a real mouth; she never shuts up.

5. (saddlery) The crosspiece of a bridle bit, which enters the mouth of an animal.
6. (obsolete) A principal speaker; one who utters the common opinion; a mouthpiece.

   • Every coffeehouse has some particular statesman belonging to it, who is the mouth of the street where he lives.

7. (obsolete) Cry; voice.
8. (obsolete) Speech; language; testimony.
   • 1611, The Holy Bible, […] (King James Version), imprinted at London: By Robert Barker, […], OCLC 964384981 ↗, Matthew 18:16 ↗:

     that in the mouth of two or three witnesses every word may be established

9. (obsolete) A wry face; a grimace; a mow.
   • c. 1595–1596, William Shakespeare, “A Midsommer Nights Dreame”, in Mr. William Shakespeares Comedies, Histories, & Tragedies: Published According to the True Originall Copies (First Folio), London: Printed by Isaac Iaggard, and Ed[ward] Blount, published 1623, OCLC 606515358 ↗, [Act III, scene ii]:

     Counterfeit sad looks, / Make mouths upon me when I turn my back.

• See also Thesaurus:mouth

• French: bouche (human), gueule (animal)

  Gallo: góll, goule

• German: Mund, Maul (of animals), Gosche/Gosch/Gusche
• Italian: bocca
• Portuguese: boca
• Russian: рот
• Spanish: boca

• French: embouchure
• Italian: imboccatùra, imbócco
• Portuguese: boca, entrada, orifício
• Russian: отве́рстие
• Spanish: boca, entrada, desembocadura, orificio

• French: embouchure
• German: Mündung
• Italian: foce
• Portuguese: foz, embocadura
• Russian: у́стье
• Spanish: desembocadura

mouth (mouths, present participle mouthing; past and past participle mouthed)

1. (transitive) To speak; to utter.

   He mouthed his opinions on the subject at the meeting.

   • mouthing big phrases

2. (transitive) To make the actions of speech, without producing sound.

   The prompter mouthed the words to the actor, who had forgotten them.

3. (transitive) To utter with a voice that is overly loud or swelling.
4. (transitive) To pick up or handle with the lips or mouth, but not chew or swallow.

   The fish mouthed the lure, but didn't bite.

5. (obsolete) To take into the mouth; to seize or grind with the mouth or teeth; to chew; to devour.
6. (obsolete) To form or cleanse with the mouth; to lick, as a bear licks her cub.
7. (obsolete) To make mouths at.