A piece of writing that has been copied from someone else and is presented as being your own work.

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

Roget 21: copy, facsimile, counterpart, effigies, effigy, form, likeness.    image, picture, photo, xerox, similitude, semblance, ectype^†, photo offset, electrotype; imitation etc. 19; model, representation, adumbration, study; portrait etc. (representation) 554; resemblance.    duplicate, reproduction; cast, tracing; reflex, reflexion [Brit.], reflection; shadow, echo.    transcript [copy into a non-visual form], transcription; recording, scan.    chip off the old block; reprint, new printing; rechauffe [Fr.]; apograph^†, fair copy.    parody, caricature, burlesque, travesty, travestie^†, paraphrase.    [copy with some differences] derivative, derivation, modification, expansion, extension, revision; second edition etc. (repetition) 104.    servile copy, servile imitation; plagiarism, counterfeit, fake etc. (deception) 545; pasticcio^†.    ... show more

Roget 788: borrowing, pledging.    borrowed plumes; plagiarism etc. (thieving) 791.    replevin [Law].   

Dutch: plagiaat

The act of plagiarizing; taking someone's words or ideas as if they were your own.

synonyms: piracy, plagiarisation, plagiarization.

Roget 791: stealing etc. v.; theft, thievery, latrociny^†, direption^†; abstraction, appropriation; plagiary, plagiarism; autoplagiarism^†; latrocinium^†.    spoliation, plunder, pillage; sack, sackage^†; rapine, brigandage, foray, razzia^†, rape, depredation, raid; blackmail.    piracy, privateering, buccaneering; license to plunder, letters of marque, letters of mark and reprisal.    filibustering, filibusterism^†; burglary; housebreaking; badger game [Slang].    robbery, highway robbery, hold-up [U.S.], mugging.    peculation, embezzlement; fraud etc. 545; larceny, petty larceny, grand larceny, shoplifting.    thievishness, rapacity, kleptomania, Alsatia^†, den of Cacus, den of thieves.    blackmail, extortion, shakedown, Black Hand [U.S.].    [person who commits theft] thief etc. 792.    ... show more

Dutch: letterdieverij, letterroof, plagiaat
Polish: plagiat