The document defines plagiarism as submitting another's work as one's own without proper citation or credit. Plagiarism includes copying text, images, artwork or music from sources like books, articles, the internet or other media without attribution. It also covers copying directly from other students' assignments. Plagiarism is considered academic dishonesty and is wrong because it is stealing another's work and lying about the source of the ideas or content. Lecturers can detect plagiarism using software like Turnitin that checks for uncited copying from other sources.