[1] : The Collaborative International Dictionary of English v.0.48

catapult \cat"apult\, n. l. catapulta, gr. ?, prob. from kata`
   down + ? to shake, hurl.
   1913 webster
   1. mil. antiq. an engine somewhat resembling a massive
      crossbow, used by the ancient greeks and romans for
      throwing stones, arrows, spears, etc.
      1913 webster

   2. a forked stick with elastic band for throwing small
      stones, etc.
      1913 webster

[2] : WordNet (r) 2.0

catapult
     n 1: a plaything consisting of a y-shaped stick with elastic
          between the arms; used to propel small stones syn: slingshot,
           sling
     2: a device that launches aircraft from a warship syn: launcher
     3: medieval artillery used during sieges; a heavy war engine
        for hurling large stones and other missiles syn: arbalest,
         arbalist, ballista, bricole, mangonel, onager,
        trebuchet, trebucket
     v 1: shoot forth or launch, as if from a catapult; "the enemy
          catapulted rocks towards the fort"
     2: hurl as if with a sling syn: sling
see also:
slingshot sling launcher arbalest arbalist ballista 
bricole mangonel onager trebuchet trebucket 

[3] : Moby Thesaurus II by Grady Ward, 1.0

44 moby thesaurus words for "catapult":
   arbalest, ballista, booster rocket, bowl, cast, chuck, chunk, dart,
   dash, fire, fling, flip, fork, ground loop, heave, hopoff, hurl,
   hurtle, jerk, lance, launch, let fly, lob, pass, peg, pelt, pitch,
   pitchfork, put, put the shot, rotation, serve, shy, sling,
   slingshot, snap, takeoff, throw, throw stick, throwing-stick, tilt,
   toss, trebuchet, wommera

Catapult >> C Words
Catapult, definition of term: Catapult
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