Source : Webster's Revised Unabridged Dictionary (1913)

Dart \Dart\, v. t. [imp. & p. p. {Darted}; p. pr. & vb. n.
   {Darting}.]
   1. To throw with a sudden effort or thrust, as a dart or
      other missile weapon; to hurl or launch.

   2. To throw suddenly or rapidly; to send forth; to emit; to
      shoot; as, the sun darts forth his beams.

            Or what ill eyes malignant glances dart? --Pope.

Dart \Dart\, v. i.
   1. To fly or pass swiftly, as a dart.

   2. To start and run with velocity; to shoot rapidly along;
      as, the deer darted from the thicket.

Dart \Dart\, n. [OF. dart, of German origin; cf. OHG. tart
   javelin, dart, AS. dara?, daro?, Sw. dart dagger, Icel.
   darra?r dart.]
   1. A pointed missile weapon, intended to be thrown by the
      hand; a short lance; a javelin; hence, any sharp-pointed
      missile weapon, as an arrow.

            And he [Joab] took three darts in his hand, and
            thrust them through the heart of Absalom. --2 Sa.
                                                  xviii. 14.

   2. Anything resembling a dart; anything that pierces or
      wounds like a dart.

            The artful inquiry, whose venomed dart Scarce wounds
            the hearing while it stabs the heart. --Hannan More.

   3. A spear set as a prize in running. [Obs.] --Chaucer.

   4. (Zo["o]l.) A fish; the dace. See {Dace}.

   {Dart sac} (Zo["o]l.), a sac connected with the reproductive
      organs of land snails, which contains a dart, or arrowlike
      structure.

Source : WordNet®

dart
     v 1: move along rapidly and lightly; skim or dart [syn: {flit}, {flutter},
           {fleet}]
     2: run or move very quickly or hastily; "She dashed into the
        yard" [syn: {dash}, {scoot}, {scud}, {flash}, {shoot}]
     3: move with sudden speed; "His forefinger darted in all
        directions as he spoke"

dart
     n 1: a small narrow pointed missile that is thrown or shot
     2: a tapered tuck made in dressmaking
     3: a sudden quick movement [syn: {flit}]