Learn how to say Plagiarists correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word plagiarism:
the practice of taking someone else’s work or ideas and passing them off as one’s own:
there were accusations of plagiarism
it claims there are similar plagiarisms in the software produced at the university
early 17th century: from Latin plagiarius ‘kidnapper’ (from plagium ‘a kidnapping’, from Greek plagion) + -ism