A gun that is set to fire on any intruder that comes in contact with the wire that sets it off.

synoniem: set gun.

Roget 545: deception; falseness etc. 544; untruth etc. 546; imposition, imposture; fraud, deceit, guile; fraudulence, fraudulency^†; covin^†; knavery etc. (cunning) 702; misrepresentation etc. (falsehood) 544; bluff; straw-bail, straw bid [U.S.]; spoof [Slang].    delusion, gullery^†; juggling, jugglery^†; slight of hand, legerdemain; prestigiation^†, prestidigitation; magic etc. 992; conjuring, conjuration; hocus-pocus, escamoterie^†, jockeyship^†; trickery, coggery^†, chicanery; supercherie^†, cozenage^†, circumvention, ingannation^†, collusion; treachery etc. 940; practical joke.    trick, cheat, wile, blind, feint, plant, bubble, fetch, catch, chicane, juggle, reach, hocus, bite; card sharping, stacked deck, loaded dice, quick shuffle, double dealing, dealing seconds, dealing from the bottom of the deck; artful dodge, swindle; tricks upon travelers; stratagem etc. (artifice) 702; confidence trick, fake, hoax; theft etc. 791; ballot-box stuffing [U.S.], barney [Slang]; brace game [Slang], bunko game, drop game [Slang], gum game [U.S.], panel game [U.S.], shell game, thimblerig, skin game [U.S.].    snare, trap, pitfall, decoy, gin; springe^†, springle^†; noose, hoot; bait, decoy-duck, tub to the whale, baited trap, guet-a-pens; cobweb, net, meshes, toils, mouse trap, birdlime; dionaea^†, Venus's flytrap^†; ambush etc. 530; trapdoor, sliding panel, false bottom; spring-net, spring net, spring gun, mask, masked battery; mine; flytrap^†; green goods [U.S.]; panel house.    Cornish hug; wolf in sheep's clothing etc. (deceiver) 548; disguise, disguisement^†; false colors, masquerade, mummery, borrowed plumes; pattes de velours [Fr.].    mockery etc. (imitation) 19; copy etc. 21; counterfeit, sham, make-believe, forgery, fraud; lie etc. 546; a delusion a mockery and a snare" [Denman], hollow mockery.    whited sepulcher, painted sepulcher; tinsel; paste, junk jewelry, costume jewelry, false jewelry, synthetic jewels; scagliola^†, ormolu, German silver, albata^†, paktong^†, white metal, Britannia metal, paint; veneer; jerry building; man of straw.    illusion etc. (error) 495; ignis fatuus [Lat.] etc. 423; mirage etc. 443.    ... meer laten zien