Source : Webster's Revised Unabridged Dictionary (1913)

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.

Barque \Barque\, n.
   Same as 3d {Bark}, n.

Source : WordNet®

barque
     n : a sailing ship with 3 (or more) masts [syn: {bark}]