from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. The body opening through which an animal takes in food.
  • n. The cavity lying at the upper end of the alimentary canal, bounded on the outside by the lips and inside by the oropharynx and containing in higher vertebrates the tongue, gums, and teeth.
  • n. This cavity regarded as the source of sounds and speech.
  • n. The opening to any cavity or canal in an organ or a bodily part.
  • n. The part of the lips visible on the human face.
  • n. A person viewed as a consumer of food: has three mouths to feed at home.
  • n. A pout, grimace, or similar expression.
  • n. Utterance; voice: gave mouth to her doubts.
  • n. A tendency to talk excessively or unwisely.
  • n. Impudent or vulgar talk: Watch your mouth.
  • n. A spokesperson: a mouthpiece.
  • n. A natural opening, as the part of a stream or river that empties into a larger body of water or the entrance to a harbor, canyon, valley, or cave.
  • n. The opening through which a container is filled or emptied.
  • n. The opening between the jaws of a vise or other holding or gripping tool.
  • n. Music An opening in the pipe of an organ.
  • n. Music The opening in the mouthpiece of a flute across which the player blows.
  • transitive v. To speak or pronounce, especially:
  • transitive v. To declare in a pompous manner; declaim: mouthing his opinions of the candidates.
  • transitive v. To utter without conviction or understanding: mouthing empty compliments.
  • transitive v. To form soundlessly: I mouthed the words as the others sang.
  • transitive v. To utter indistinctly; mumble.
  • transitive v. To take or move around in the mouth.
  • intransitive v. To orate affectedly; declaim.
  • intransitive v. To grimace.
  • mouth off Slang To express one's opinions or complaints in a loud, indiscreet manner.
  • mouth off Slang To speak impudently; talk back.
  • idiom in Discouraged; sad; dejected.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The 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.
  • n. An outlet, aperture or orifice.
  • n. A loud or overly talkative person.
  • v. To speak about something.
  • v. To make the actions of speech, without producing sound.
  • v. To pick up or handle with the lips or mouth, but not chew or swallow.

from the GNU version of the Collaborative International Dictionary of English

  • n. The opening through which an animal receives food; the aperture between the jaws or between the lips; also, the cavity, containing the tongue and teeth, between the lips and the pharynx; the buccal cavity.
  • n. An opening affording entrance or exit; orifice; aperture
  • n. The opening of a vessel by which it is filled or emptied, charged or discharged
  • n. The opening or entrance of any cavity, as a cave, pit, well, or den.
  • n. The opening of a piece of ordnance, through which it is discharged.
  • n. The opening through which the waters of a river or any stream are discharged.
  • n. The entrance into a harbor.
  • n. The crosspiece of a bridle bit, which enters the mouth of an animal.
  • n. A principal speaker; one who utters the common opinion; a mouthpiece.
  • n. Cry; voice.
  • n. Speech; language; testimony.
  • n. A wry face; a grimace; a mow.
  • intransitive v. To speak with a full, round, or loud, affected voice; to vociferate; to rant.
  • intransitive v. To put mouth to mouth; to kiss.
  • intransitive v. To make grimaces, esp. in ridicule or contempt.
  • transitive v. To take into the mouth; to seize or grind with the mouth or teeth; to chew; to devour.
  • transitive v. To utter with a voice affectedly big or swelling; to speak in a strained or unnaturally sonorous manner.
  • transitive v. To form or cleanse with the mouth; to lick, as a bear her cub.
  • transitive v. To make mouths at.

from The Century Dictionary and Cyclopedia

  • To utter.
  • To utter with a voice affectedly big or swelling, or with more regard to sound than to sense.
  • To touch, press, or seize with the mouth or lips; take into the mouth; mumble; lick.
  • To reproach; insult.
  • To speak with a full, round, or loud voice; speak affectedly; vociferate; rant: as, a mouthing actor.
  • To join mouths; kiss.
  • To make a mouth; make a wry face; grimace.
  • n. The oral opening or ingestive aperture of an animal, of whatever character and wherever situated; the os, or oral end of the alimentary canal or digestive system.
  • n. Specifically — The human mouth regarded as the channel of vocal utterance.
  • n. The interior hollow of the mouth; the buccal cavity: as, inflammation of the mouth and throat.
  • n. The exterior opening or orifice of the mouth; the lips: as, a well-formed mouth; a kiss on the mouth.
  • n. In entomology, the mouth-parts collectively; the oral organs or appendages which are visible externally: as, the trophi of a mandibulate mouth.
  • n. Anything resembling a mouth in some respect.
  • n. The part of a river or other stream where its waters are discharged into the ocean or any large body of water; a conformation of land resembling a river-mouth.
  • n. The opening of a vise between its cheeks, chops, or jaws.
  • n. In fortification, the interior opening of an embrasure. It may be either rectangular or trapezoidal in form. Some military writers call this opening the throat of the embrasure, and apply the term mouth to the exterior opening. See embrasure.
  • n. In an organ-pipe, the opening in the side of the pipe above the foot, between the upper and the lower lip. See pipe.
  • n. In ceramics, a name given to one of the fireplaces of a pottery-kiln. The kilns for firing the biscuit have several of these mouths built against them externally, and a flue from each mouth leads the flames to a central opening, where they enter the oven.
  • n. The cross-bar of a bridle-bit, uniting the branches or the rings as the case may be.
  • n. A principal speaker; one who utters the common opinion; an oracle; a mouthpiece.
  • n. Cry; voice.
  • n. Flavor; taste in the mouth: said of beer.
  • n. See the adjectives.
  • n. In transverse flutes, the edge of a mouth-hole. See mouth-hole.
  • n. In metallurgy, the opening through which a furnace is charged with fuel, ore, etc.
  • n. In mining, a mine entrance.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. the point where a stream issues into a larger body of water
  • n. an opening that resembles a mouth (as of a cave or a gorge)
  • n. the externally visible part of the oral cavity on the face and the system of organs surrounding the opening
  • v. express in speech
  • v. touch with the mouth
  • v. articulate silently; form words with the lips only
  • n. a person conceived as a consumer of food
  • n. the opening of a jar or bottle
  • n. a spokesperson (as a lawyer)
  • n. an impudent or insolent rejoinder
  • n. the opening through which food is taken in and vocalizations emerge


from The American Heritage® Dictionary of the English Language, 4th Edition

Middle English, from Old English mūth.

from Wiktionary, Creative Commons Attribution/Share-Alike License

From Middle English mouth, from Old English mūþ ("mouth, opening, door, gate"), from Proto-Germanic *munþaz (“mouth”), from Proto-Indo-European *ment- (“to chew; jaw, mouth”). Cognate with Scots mouth ("mouth"), North Frisian müd, müth, müss ("mouth"), West Frisian mûn ("mouth"), Dutch mond ("mouth"), muide ("river mouth") and mui ("riptide"), German Mund ("mouth"), Swedish mun ("mouth"), Faroese muður, munnur ("mouth"), Icelandic munnur ("mouth"), Gothic 𐌼𐌿𐌽𐌸𐍃 (munþs, "mouth"), Latin mentum ("chin") and mandō ("to chew"), Ancient Greek μάσταξ (mástax, "jaws, mouth") and μασάομαι (masáomai, "to chew"), Albanian mjekër ("chin, beard"), Welsh mant ("jawbone"), Hittite mēni ("chin").



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