Source : Webster's Revised Unabridged Dictionary (1913)

Vent \Vent\, v. t. [imp. & p. p. {Vented}; p. pr. & vb. n.
   {Venting}.]
   1. To let out at a vent, or small aperture; to give passage
      or outlet to.

   2. To suffer to escape from confinement; to let out; to
      utter; to pour forth; as, to vent passion or complaint.

            The queen of heaven did thus her fury vent.
                                                  --Dryden.

   3. To utter; to report; to publish. [Obs.]

            By mixing somewhat true to vent more lies. --Milton.

            Thou hast framed and vented very curious orations.
                                                  --Barrow.

   4. To scent, as a hound. [Obs.] --Turbervile.

   5. To furnish with a vent; to make a vent in; as, to vent. a
      mold.

Vent \Vent\, v. t.
   To sell; to vend. [Obs.]

         Therefore did those nations vent such spice. --Sir W.
                                                  Raleigh.

Vent \Vent\, n. [Sp. venta a poor inn, sale, market. See {Vent}
   sale.]
   A baiting place; an inn. [Obs.]

Vent \Vent\, v. i. [Cf. F. venter to blow, vent wind (see
   {Ventilate}); but prob influenced by E. vent an opening.]
   To snuff; to breathe or puff out; to snort. [Obs.] --Spenser.

Vent \Vent\, n. [OE. fent, fente, a slit, F. fente a slit,
   cleft, fissure, from fendre to split, L. findere; but
   probably confused with F. vent wind, L. ventus. See
   {Fissure}, and cf. Vent to snuff.]
   1. A small aperture; a hole or passage for air or any fluid
      to escape; as, the vent of a cask; the vent of a mold; a
      volcanic vent.

            Look, how thy wounds do bleed at many vents. --Shak.

            Long't was doubtful, both so closely pent, Which
            first should issue from the narrow vent. --Pope.

   2. Specifically:
      (a) (Zo["o]l.) The anal opening of certain invertebrates
          and fishes; also, the external cloacal opening of
          reptiles, birds, amphibians, and many fishes.
      (b) (Gun.) The opening at the breech of a firearm, through
          which fire is communicated to the powder of the
          charge; touchhole.
      (c) (Steam Boilers) Sectional area of the passage for
          gases divided by the length of the same passage in
          feet.

   3. Fig.: Opportunity of escape or passage from confinement or
      privacy; outlet.

   4. Emission; escape; passage to notice or expression;
      publication; utterance.

            Without the vent of words.            --Milton.

            Thou didst make tolerable vent of thy travel.
                                                  --Shak.

   {To give vent to}, to suffer to escape; to let out; to pour
      forth; as, to give vent to anger.

   {To take vent}, to escape; to be made public. [R.]

   {Vent feather} (Zo["o]l.), one of the anal, or crissal,
      feathers of a bird.

   {Vent field} (Gun.), a flat raised surface around a vent.

   {Vent piece}. (Gun.)
      (a) A bush. See 4th {Bush}, n., 2.
      (b) A breech block.

Vent \Vent\, n. [F. vente, fr. L. vendere, -itum, to sell; perh.
   confused with E. vent an opening. See {Vend}.]
   Sale; opportunity to sell; market. [Obs.] --Shelton.

         There is no vent for any commodity but of wool. --Sir
                                                  W. Temple.

Source : WordNet®

vent
     n 1: a hole for the escape of gas or air [syn: {venthole}, {vent-hole},
           {blowhole}]
     2: external opening of urinary or genital system of a lower
        vertebrate
     3: a fissure in the earth's crust (or in the surface of some
        other planet) through which molten lava and gases erupt
        [syn: {volcano}]
     4: a slit in a garment (as in the back seam of a jacket)
     5: activity that releases or expresses creative energy or
        emotion; "she had no other outlet for her feelings"; "he
        gave vent to his anger" [syn: {release}, {outlet}]

vent
     v 1: give expression or utterance to; "She vented her anger";
          "The graduates gave vent to cheers" [syn: {ventilate}, {give
          vent}]
     2: expose to cool or cold air so as to cool or freshen; "air
        the old winter clothes"; "air out the smoke-filled rooms"
        [syn: {ventilate}, {air out}, {air}]