Princeton's WordNet

1. plagiarism(noun)

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

2. plagiarism, plagiarization, plagiarisation, piracy(noun)

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

Wiktionary

1. plagiarism(Noun)

   The act of plagiarizing: the copying of another person's ideas, text or other creative work, and presenting it as one's own, especially without permission.

   Though plagiarism in and of itself is not illegal, it is usually frowned upon; and many cases of plagiarism involve illegal copyright violation.

2. plagiarism(Noun)

   Text or other work resulting from this act.

   The novel contained many instances of plagiarism; in fact, some entire passages were lifted verbatim from other novelists' work.

Webster Dictionary

1. Plagiarism(noun)

   the act or practice of plagiarizing

2. Plagiarism(noun)

   that which plagiarized

U.S. National Library of Medicine

1. Plagiarism

   Passing off as one's own the work of another without credit.

• plagiaatAfrikaans
• إنتِحال مؤلِّف، سَرِقَه أدبيّة او فِكْرِيَّهArabic
• плагиатствоBulgarian
• plágioPortuguese (BR)
• plagiátorstvíCzech
• das PlagiatGerman
• plagieringDanish
• λογοκλοπήGreek
• plagioSpanish
• plagiaatEstonian
• سرقت ادبیFarsi
• plagiointiFinnish
• plagiatFrench
• גְנֵיבַת רַעיוֹנוֹתHebrew
• साहित्यिक चोरीHindi
• književa krađa, plagijatCroatian
• plágiumHungarian
• penjiplakanIndonesian
• plagioItalian
• 표절, 도작, 표절물Korean
• plagiatasLithuanian
• plaģiātsLatvian
• penjiplakanMalay
• plagiat, plagieringNorwegian
• plagiat, plagiatorstwoPolish
• سرقت ادبیPersian
• دبل چا افكار او ليكنې په خپل نوم تيرولPashto
• плагиатRussian
• plagiátorstvoSlovak
• plagiatorstvoSlovenian
• plagijatSerbian
• plagiering, plagiatSwedish
• การขโมยความคิดThai
• eser hırsızlığıTurkish
• 剽竊Chinese (Trad.)
• плагіатUkrainian
• فکر يا مضمون کي چوريUrdu
• sự đạo vănVietnamese
• 剽窃Chinese (Simp.)