Catapult

1. (n.) An engine somewhat resembling a massive crossbow, used by the ancient Greeks and Romans for throwing stones, arrows, spears, etc.

2. (n.) A forked stick with elastic band for throwing small stones, etc.

Thesaurus Entries

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