Source : Webster's Revised Unabridged Dictionary (1913)

Mound \Mound\, v. t. [imp. & p. p. {Mounded}; p. pr. & vb. n.
   {Mounding}.]
   To fortify or inclose with a mound.

Mound \Mound\ (mound), n. [F. monde the world, L. mundus. See
   {Mundane}.]
   A ball or globe forming part of the regalia of an emperor or
   other sovereign. It is encircled with bands, enriched with
   precious stones, and surmounted with a cross; -- called also
   {globe}.

Mound \Mound\, n. [OE. mound, mund, protection, AS. mund
   protection, hand; akin to OHG. munt, Icel. mund hand, and
   prob. to L. manus. See {Manual}.]
   An artificial hill or elevation of earth; a raised bank; an
   embarkment thrown up for defense; a bulwark; a rampart; also,
   a natural elevation appearing as if thrown up artificially; a
   regular and isolated hill, hillock, or knoll.

         To thrid the thickets or to leap the mounds. --Dryden.

   {Mound bird}. (Zo["o]l.) Same as {Mound maker} (below).

   {Mound builders} (Ethnol.), the tribe, or tribes, of North
      American aborigines who built, in former times, extensive
      mounds of earth, esp. in the valleys of the Mississippi
      and Ohio Rivers. Formerly they were supposed to have
      preceded the Indians, but later investigations go to show
      that they were, in general, identical with the tribes that
      occupied the country when discovered by Europeans.

   {Mound maker} (Zo["o]l.), any one of the megapodes.

   {Shell mound}, a mound of refuse shells, collected by
      aborigines who subsisted largely on shellfish. See
      {Midden}, and {Kitchen middens}.

Source : WordNet®

mound
     v : form into a rounded elevation; "mound earth"

mound
     n 1: (baseball) the slight elevation on which the pitcher stands
          [syn: {hill}, {pitcher's mound}]
     2: a small natural hill [syn: {knoll}, {hillock}, {hummock}, {hammock}]
     3: a collection of objects laid on top of each other [syn: {pile},
         {heap}, {cumulus}]
     4: structure consisting of an artificial heap or bank usually
        of earth or stones; "they built small mounds to hide
        behind" [syn: {hill}]
     5: the position on a baseball team of the player who throws the
        ball for a batter to try to hit; "he has played every
        position except pitcher"; "they have a southpaw on the
        mound" [syn: {pitcher}]