Source : Webster's Revised Unabridged Dictionary (1913)

Mouth \Mouth\ (mouth), n.; pl. {Mouths} (mou[th]z). [OE. mouth,
   mu[thorn], AS. m[=u][eth]; akin to D. mond, OS. m[=u][eth],
   G. mund, Icel. mu[eth]r, munnr, Sw. mun, Dan. mund, Goth.
   mun[thorn]s, and possibly L. mentum chin; or cf. D. muil
   mouth, muzzle, G. maul, OHG. m[=u]la, Icel. m[=u]li, and Skr.
   mukha mouth.]
   1. 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.

   2. Hence: An opening affording entrance or exit; orifice;
      aperture; as:
      (a) The opening of a vessel by which it is filled or
          emptied, charged or discharged; as, the mouth of a jar
          or pitcher; the mouth of the lacteal vessels, etc.
      (b) The opening or entrance of any cavity, as a cave, pit,
          well, or den.
      (c) The opening of a piece of ordnance, through which it
          is discharged.
      (d) The opening through which the waters of a river or any
          stream are discharged.
      (e) The entrance into a harbor.

   3. (Saddlery) The crosspiece of a bridle bit, which enters
      the mouth of an animal.

   4. 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.                       --Addison.

   5. Cry; voice. [Obs.] --Dryden.

   6. Speech; language; testimony.

            That in the mouth of two or three witnesses every
            word may be established.              --Matt. xviii.
                                                  16.

   7. A wry face; a grimace; a mow.

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

   {Down in the mouth}, chapfallen; of dejected countenance;
      depressed; discouraged. [Obs. or Colloq.]

   {Mouth friend}, one who professes friendship insincerely.
      --Shak.

   {Mouth glass}, a small mirror for inspecting the mouth or
      teeth.

   {Mouth honor}, honor given in words, but not felt. --Shak.

   {Mouth organ}. (Mus.)
      (a) Pan's pipes. See {Pandean}.
      (b) An harmonicon.

   {Mouth pipe}, an organ pipe with a lip or plate to cut the
      escaping air and make a sound.

   {To stop the mouth}, to silence or be silent; to put to
      shame; to confound.

            The mouth of them that speak lies shall be stopped.
                                                  --Ps. lxiii.
                                                  11.

            Whose mouths must be stopped.         --Titus i. 11.

Stop \Stop\, v. t. [imp. & p. p. {Stopped}; p. pr. & vb. n.
   {Stopping}.] [OE. stoppen, AS. stoppian (in comp.); akin to
   LG. & D. stoppen, G. stopfen, Icel. stoppa, Sw. stoppa, Dan.
   stoppe; all probably fr. LL. stopare, stupare, fr. L. stuppa
   the coarse part of flax, tow, oakum. Cf. {Estop}, {Stuff},
   {Stupe} a fomentation.]
   1. To close, as an aperture, by filling or by obstructing;
      as, to stop the ears; hence, to stanch, as a wound.
      --Shak.

   2. To obstruct; to render impassable; as, to stop a way,
      road, or passage.

   3. To arrest the progress of; to hinder; to impede; to shut
      in; as, to stop a traveler; to stop the course of a
      stream, or a flow of blood.

   4. To hinder from acting or moving; to prevent the effect or
      efficiency of; to cause to cease; to repress; to restrain;
      to suppress; to interrupt; to suspend; as, to stop the
      execution of a decree, the progress of vice, the
      approaches of old age or infirmity.

            Whose disposition all the world well knows Will not
            be rubbed nor stopped.                --Shak.

   5. (Mus.) To regulate the sounds of, as musical strings, by
      pressing them against the finger board with the finger, or
      by shortening in any way the vibrating part.

   6. To point, as a composition; to punctuate. [R.]

            If his sentences were properly stopped. --Landor.

   7. (Naut.) To make fast; to stopper.

   Syn: To obstruct; hinder; impede; repress; suppress;
        restrain; discontinue; delay; interrupt.

   {To stop off} (Founding), to fill (a part of a mold) with
      sand, where a part of the cavity left by the pattern is
      not wanted for the casting.

   {To stop the mouth}. See under {Mouth}.