plagiarism /ˈpleɪʤəˌrɪzəm/ noun Learner's definition of PLAGIARISM
[noncount]
: the act of using another person's words or ideas without giving credit to that person : the act of plagiarizing something抄袭；剽窃 — plagiarist
/ˈpleɪʤərɪst/ noun, plural plagiarists [count]