Source : Webster's Revised Unabridged Dictionary (1913)

Bark \Bark\, v. t. [imp. & p. p. {Barked} (?); p. pr. & vb. n.
   {Barking}.]
   1. To strip the bark from; to peel.

   2. To abrade or rub off any outer covering from; as to bark
      one's heel.

   3. To girdle. See {Girdle}, v. t., 3.

   4. To cover or inclose with bark, or as with bark; as, to
      bark the roof of a hut.

Bark \Bark\, v. i. [OE. berken, AS. beorcan; akin to Icel.
   berkja, and prob. to E. break.]
   1. To make a short, loud, explosive noise with the vocal
      organs; -- said of some animals, but especially of dogs.

   2. To make a clamor; to make importunate outcries.

            They bark, and say the Scripture maketh heretics.
                                                  --Tyndale.

            Where there is the barking of the belly, there no
            other commands will be heard, much less obeyed.
                                                  --Fuller.

Bark \Bark\, n.
   The short, loud, explosive sound uttered by a dog; a similar
   sound made by some other animals.

Bark \Bark\, Barque \Barque\, n. [F. barque, fr. Sp. or It.
   barca, fr. LL. barca for barica. See {Barge}.]
   1. Formerly, any small sailing vessel, as a pinnace, fishing
      smack, etc.; also, a rowing boat; a barge. Now applied
      poetically to a sailing vessel or boat of any kind.
      --Byron.

   2. (Naut.) A three-masted vessel, having her foremast and
      mainmast square-rigged, and her mizzenmast
      schooner-rigged.

Source : WordNet®

bark
     n 1: tough protective covering of the woody stems and roots of
          trees and other woody plants
     2: a noise resembling the bark of a dog
     3: a sailing ship with 3 (or more) masts [syn: {barque}]
     4: the sound made by a dog
     v 1: speak in an unfriendly tone; "She barked into the
          dictaphone"
     2: cover with bark
     3: remove the bark of a tree [syn: {skin}]
     4: make barking sounds; "The dogs barked at the stranger"
     5: tan (a skin) with bark tannins