Search Result for "gun": 
Wordnet 3.0

NOUN (7)

1. a weapon that discharges a missile at high velocity (especially from a metal tube or barrel);

2. large but transportable armament;
[syn: artillery, heavy weapon, gun, ordnance]

3. a person who shoots a gun (as regards their ability);
[syn: gunman, gun]

4. a professional killer who uses a gun;
[syn: gunman, gunslinger, hired gun, gun, gun for hire, triggerman, hit man, hitman, torpedo, shooter]

5. a hand-operated pump that resembles a revolver; forces grease into parts of a machine;
[syn: grease-gun, gun]

6. a pedal that controls the throttle valve;
- Example: "he stepped on the gas"
[syn: accelerator, accelerator pedal, gas pedal, gas, throttle, gun]

7. the discharge of a firearm as signal or as a salute in military ceremonies;
- Example: "two runners started before the gun"
- Example: "a twenty gun salute"

VERB (1)

1. shoot with a gun;

The Collaborative International Dictionary of English v.0.48:

Gin \Gin\ (g[i^]n), v. i. [imp. & p. p. Gan (g[a^]n), Gon (g[o^]n), or Gun (g[u^]n); p. pr. & vb. n. Ginning.] [OE. ginnen, AS. ginnan (in comp.), prob. orig., to open, cut open, cf. OHG. inginnan to begin, open, cut open, and prob. akin to AS. g[imac]nan to yawn, and E. yawn. [root]31. See Yawn, v. i., and cf. Begin.] To begin; -- often followed by an infinitive without to; as, gan tell. See Gan. [Obs. or Archaic] "He gan to pray." --Chaucer. [1913 Webster]
The Collaborative International Dictionary of English v.0.48:

Gun \Gun\ (g[u^]n), n. [OE. gonne, gunne; of uncertain origin; cf. Ir., Gael., & LL. gunna, W. gum; possibly (like cannon) fr. L. canna reed, tube; or abbreviated fr. OF. mangonnel, E. mangonel, a machine for hurling stones.] 1. A weapon which throws or propels a missile to a distance; any firearm or instrument for throwing projectiles, consisting of a tube or barrel closed at one end, in which the projectile is placed, with an explosive charge (such as guncotton or gunpowder) behind, which is ignited by various means. Pistols, rifles, carbines, muskets, and fowling pieces are smaller guns, for hand use, and are called small arms. Larger guns are called cannon, ordnance, fieldpieces, carronades, howitzers, etc. See these terms in the Vocabulary. [1913 Webster] As swift as a pellet out of a gunne When fire is in the powder runne. --Chaucer. [1913 Webster] The word gun was in use in England for an engine to cast a thing from a man long before there was any gunpowder found out. --Selden. [1913 Webster] 2. (Mil.) A piece of heavy ordnance; in a restricted sense, a cannon. [1913 Webster] 3. pl. (Naut.) Violent blasts of wind. [1913 Webster] Note: Guns are classified, according to their construction or manner of loading as rifled or smoothbore, breech-loading or muzzle-loading, cast or built-up guns; or according to their use, as field, mountain, prairie, seacoast, and siege guns. [1913 Webster] Armstrong gun, a wrought iron breech-loading cannon named after its English inventor, Sir William Armstrong. Big gun or Great gun, a piece of heavy ordnance; hence (Fig.), a person superior in any way; as, bring in the big guns to tackle the problem. Gun barrel, the barrel or tube of a gun. Gun carriage, the carriage on which a gun is mounted or moved. Gun cotton (Chem.), a general name for a series of explosive nitric ethers of cellulose, obtained by steeping cotton in nitric and sulphuric acids. Although there are formed substances containing nitric acid radicals, yet the results exactly resemble ordinary cotton in appearance. It burns without ash, with explosion if confined, but quietly and harmlessly if free and open, and in small quantity. Specifically, the lower nitrates of cellulose which are insoluble in ether and alcohol in distinction from the highest (pyroxylin) which is soluble. See Pyroxylin, and cf. Xyloidin. The gun cottons are used for blasting and somewhat in gunnery: for making celluloid when compounded with camphor; and the soluble variety (pyroxylin) for making collodion. See Celluloid, and Collodion. Gun cotton is frequenty but improperly called nitrocellulose. It is not a nitro compound, but an ester of nitric acid. Gun deck. See under Deck. Gun fire, the time at which the morning or the evening gun is fired. Gun metal, a bronze, ordinarily composed of nine parts of copper and one of tin, used for cannon, etc. The name is also given to certain strong mixtures of cast iron. Gun port (Naut.), an opening in a ship through which a cannon's muzzle is run out for firing. Gun tackle (Naut.), the blocks and pulleys affixed to the side of a ship, by which a gun carriage is run to and from the gun port. Gun tackle purchase (Naut.), a tackle composed of two single blocks and a fall. --Totten. Krupp gun, a wrought steel breech-loading cannon, named after its German inventor, Herr Krupp. Machine gun, a breech-loading gun or a group of such guns, mounted on a carriage or other holder, and having a reservoir containing cartridges which are loaded into the gun or guns and fired in rapid succession. In earlier models, such as the Gatling gun, the cartridges were loaded by machinery operated by turning a crank. In modern versions the loading of cartidges is accomplished by levers operated by the recoil of the explosion driving the bullet, or by the pressure of gas within the barrel. Several hundred shots can be fired in a minute by such weapons, with accurate aim. The Gatling gun, Gardner gun, Hotchkiss gun, and Nordenfelt gun, named for their inventors, and the French mitrailleuse, are machine guns. To blow great guns (Naut.), to blow a gale. See Gun, n., 3. [1913 Webster +PJC]
The Collaborative International Dictionary of English v.0.48:

Gun \Gun\, v. i. To practice fowling or hunting small game; -- chiefly in participial form; as, to go gunning.
WordNet (r) 3.0 (2006):

gun n 1: a weapon that discharges a missile at high velocity (especially from a metal tube or barrel) 2: large but transportable armament [syn: artillery, heavy weapon, gun, ordnance] 3: a person who shoots a gun (as regards their ability) [syn: gunman, gun] 4: a professional killer who uses a gun [syn: gunman, gunslinger, hired gun, gun, gun for hire, triggerman, hit man, hitman, torpedo, shooter] 5: a hand-operated pump that resembles a revolver; forces grease into parts of a machine [syn: grease-gun, gun] 6: a pedal that controls the throttle valve; "he stepped on the gas" [syn: accelerator, accelerator pedal, gas pedal, gas, throttle, gun] 7: the discharge of a firearm as signal or as a salute in military ceremonies; "two runners started before the gun"; "a twenty gun salute" v 1: shoot with a gun
Moby Thesaurus II by Grady Ward, 1.0:

334 Moby Thesaurus words for "gun": AA gun, Armstrong, BAR, BB gun, Benet-Mercie, Beretta, Big Bertha, Bren, Bren gun, Browning, Cain, Colt, Garand, Garand rifle, Garling, Gatling, Gatling gun, Hotchkiss, Krupp, Lancaster, Lee-Enfield, Lee-Metford, Lewis, Lewis gun, Long Tom, Luger, Mannlicher, Marlin, Martini-Henry, Mauser, Maxim, Minie, Mossberg, Nimrod, Oerlikon, Paixhans, Parrott, Remington, Savage, Smith and Wesson, Snider, Spandau, Springfield, Stevens, Thompson submachine gun, Vickers, Vickers-Maxim, Webley-Scott, Winchester, Y-gun, adventurer, air gun, antiaircraft gun, antitank gun, antitank rifle, apache, archer, arquebus, arrest, artillerist, artilleryman, assassin, assassinator, atom gun, atomic cannon, atomic gun, automatic, automatic pistol, barrel, bazooka, beat, bell, bloodletter, bloodshedder, blowgun, blowpipe, blunderbuss, bolt, bolt-action rifle, bomb thrower, bombard, bombardier, bomber, bowman, bowshot, bravo, breech, breechloader, brown Bess, bruiser, bulldog, bullet, burker, burp gun, butcher, butt, button man, caliver, cane gun, cannibal, cannon, cannoneer, carabineer, carbine, carronade, chamber, charge, chase, chassepot, check, checkmate, cock, condottiere, course, crack shot, culverin, cutoff, cutthroat, cylinder, dart gun, dead shot, dead stop, deadeye, deadlock, desperado, detonate, detonation, discharge, dog, drive, drop, eject, ejection, end, endgame, ending, eradicator, escopeta, executioner, exterminator, falcon, falconet, fell, field gun, fieldpiece, final whistle, fire, fire off, firearm, firelock, flamethrower, flintlock, flush, follow the hounds, forty-five, forty-four, fowl, fowling piece, free lance, full stop, fusil, fusillade, garroter, gat, go hunting, good shot, goon, gorilla, grinding halt, gun carriage, gun for, gunfire, gunman, gunner, gunsel, gunshot, gunslinger, hackbut, halt, hammer, handgun, harpoon gun, harquebus, hatchet man, hawk, head-hunter, heater, hedgehog, hellion, hired gun, hired killer, hireling, hit, hit man, holy terror, homicidal maniac, homicide, hood, hoodlum, hooligan, horse pistol, hound, howitzer, hunt, hunt down, hunter, jack, jacklight, killer, let fly, let off, load, lock, lockout, machine gun, machine gunner, machine pistol, magazine, man-eater, man-killer, manslayer, marksman, markswoman, massacrer, matador, matchlock, mercenary, mortar, mountain gun, mug, mugger, murderer, muscle man, musket, musketeer, musketoon, muzzle, muzzle-loader, needle gun, peashooter, pedrero, pelt, pepper, pesticide, petronel, pick off, piece, pistol, plug, plug-ugly, poison, poisoner, pom-pom, popgun, pot, potshoot, potshot, prime, professional killer, prowl after, receiver, repeater, revolver, riddle, ride to hounds, rifle, rifleman, rod, rodman, roughneck, run, salvo, sawed-off shotgun, sear, semiautomatic, sharpshooter, shikar, shoot, shoot at, shoot down, shooter, shooting iron, shot, shotgun, sight, sit-down strike, six-gun, six-shooter, skysweeper, slaughterer, slayer, snipe, sniper, soldier of fortune, sport, spray, stalemate, stalk, stand, standoff, standstill, start, stay, still-hunt, stock, stoneshot, stop, stoppage, strangler, strike, strong-arm man, submachine gun, swivel, take a potshot, targetshooter, tattoo, terror, thirty-thirty, thirty-two, thug, torpedo, tough, toxophilite, track, trail, trapshooter, trigger, trigger man, ugly customer, volley, walkout, wind-gun, work stoppage, zip gun
The Free On-line Dictionary of Computing (30 December 2018):

gun (ITS, from the ":GUN" command) To forcibly terminate a program or job (computer, not career). "Some idiot left a background process running soaking up half the cycles, so I gunned it." Compare can. (1995-02-27)