Someone who uses another person's words or ideas as if they were his own.

synonyms: literary pirate, plagiariser, plagiarist, plagiarizer.

Roget 19: imitation; copying etc. v.; transcription; repetition, duplication, reduplication; quotation; reproduction; mimeograph, xerox, facsimile; reprint, offprint.    mockery, mimicry; simulation, impersonation, personation; representation etc. 554; semblance; copy etc. 21; assimilation.    paraphrase, parody, take-off, lampoon, caricature etc. 21.    plagiarism; forgery, counterfeit etc. (falsehood) 544; celluloid.    imitator, echo, cuckoo^†, parrot, ape, monkey, mocking bird, mime; copyist, copycat; plagiarist, pirate.    ... show more

Dutch: letterdief, plagiaris, plagiator
Polish: plagiator

Someone who robs at sea or plunders the land from the sea without having a commission from any sovereign nation.

synonyms: buccaneer, sea robber, sea rover.

Roget 792: thief, robber, homo triumliterarum [Lat.], pilferer, rifler, filcher^†, plagiarist.    spoiler, depredator, pillager, marauder; harpy, shark [Slang], land shark, falcon, mosstrooper^†, bushranger^†, Bedouin^†, brigand, freebooter, bandit, thug, dacoit^†; pirate, corsair, viking, Paul Jones^†, buccaneer, buccanier^†; piqueerer^†, pickeerer^†; rover, ranger, privateer, filibuster; rapparee^†, wrecker, picaroon^†; smuggler, poacher; abductor, badger [Slang], bunko man, cattle thief, chor^†, contrabandist^†, crook, hawk, holdup man, hold-up [U.S.], jackleg [U.S.], kidnaper, rustler, cattle rustler, sandbagger, sea king, skin [Slang], sneak thief, spieler^†, strong-arm man [U.S.].    highwayman, Dick Turpin, Claude Duval, Macheath, footpad, sturdy beggar.    cut purse, pick purse; pickpocket, light-fingered gentry; sharper; card sharper, skittle sharper; thimblerigger; rook [Slang], Greek, blackleg, leg, welsher [Slang]; defaulter; Autolycus^†, Jeremy Diddler^†, Robert Macaire, artful dodger, trickster; swell mob [Slang], chevalier d'industrie [Fr.]; shoplifter.    swindler, peculator; forger, coiner; fence, receiver of stolen goods, duffer; smasher.    burglar, housebreaker; cracksman^†, magsman [Slang]; Bill Sikes, Jack Sheppard, Jonathan Wild.    gang [group of thieves], gang of thieves, theft ring; organized crime, mafia, the Sicilian Mafia, the mob, la cosa nostra [It].    [famous thieves], Dillinger, Al Capone; Robin Hood.    ... show more

Dutch: boekanier, kaper, piraat, vrijbuiter, zeerover
Polish: rozbójnik morski, pirat

A ship that is manned by pirates.

synonym: pirate ship.

Polish: okręt piracki, statek piracki

Copy illegally; of published material.

Roget 773: fail, neglect, omit, elude, evade, give the go-by to, set aside, ignore; shut one's eyes to, close one's eyes to.    infringe, transgress, violate, pirate, break, trample under foot, do violence to, drive a coach and six through.    discard, protest, repudiate, fling to the winds, set at naught, nullify, declare null and void; cancel etc. (wipe off) 552.    retract, go back from, be off, forfeit, go from one's word, palter; stretch a point, strain a point.    ... show more

Roget 791: steal, thieve, rob, mug, purloin, pilfer, filch, prig, bag, nim^†, crib, cabbage, palm; abstract; appropriate, plagiarize.    convey away, carry off, abduct, kidnap, crimp; make off with, walk off with, run off with; run away with; spirit away, seize etc. (lay violent hands on) 789.    plunder, pillage, rifle, sack, loot, ransack, spoil, spoliate^†, despoil, strip, sweep, gut, forage, levy blackmail, pirate, pickeer^†, maraud, lift cattle, poach; smuggle, run; badger [Slang]; bail up, hold up, stick up; bunco, bunko, filibuster.    swindle, peculate, embezzle; sponge, mulct, rook, bilk, pluck, pigeon, fleece; defraud etc. 545; obtain under false pretenses; live by one's wits.    rob Peter to pay Paul, borrow of Peter to pay Paul; set a thief to catch a thief.    disregard the distinction between meum and disregard the distinction between meum and tuum [Lat.].    [receive stolen goods] fence, launder, launder money.    ... show more

Take arbitrarily or by force.

synonyms: commandeer, highjack, hijack.

Dutch: opvorderen