This work addresses the phenomenon of plagiarism, an activity that, made easier with the appearance of the Internet, is today the object of increasing interest, and often concern. Oscillating between the positions of despicable crime and constitutive element in the act of writing, plagiarism provokes questions about its own limits and identity criteria. This study examines the issue of plagiarism against the backdrop of the wider debate on the nature of linguistic meaning, with special attention to the contemporary spread of views opposed to the immanentist tradition. The specific goal here is to show how a certain understanding of language and meaning, namely the anti-immanentist view of L. Wittgenstein, provides a rich means to rethinking the questions concerning the boundaries of plagiarism. Relevant elements for this discussion are identified in Wittgenstein s thought, with an emphasis on his reflections on the notion of criteria. The implications of his perspective to the subject under exam are explored, and it is demonstrated that renouncing the traditional thesis that meaning inhabits the words in a fixed and immanent manner does not necessarily lead to skeptical conclusions regarding the limits and the identity of plagiarism.