Skip to main content
More new and revised guides coming soon!
We are updating our research guides to reflect the changes brought about by CityU LibraryFind, the new Library search platform. Soon you will see more new and revised guides! Thanks for your patience.

Preventing Plagiarism

What is plagiarism?

According to the Cambridge Dictionaries Online, to plagiarize is "to use another person's idea or a part of their work and pretend that it is your own" *.

It is an act of using someone else’s ideas, words, concepts, images, sounds, formulae or data without acknowledging the source, either intentionally or accidentally. It is therefore a dishonest practice of claiming credit for something you did not do.


* Plagiarize. (2010). In Cambridge advanced learners dictionary. Cambridge Dictionaries Online. Retrieved from

This guide

This guide assists you in understanding what plagiarism is, what constitutes plagiarism, and how to avoid it:


Do you know?

Do you know that ...

  • Reusing words and phrases of the original source, even though when the source is cited, is plagiarism?
  • Only changing the words of the original is not good enough to prevent plagiarism?
  • You still need to cite when you use ideas from your own published work?

Read this guide to know more!

University requirement on academic honesty

Plagiarism is a form of academic dishonesty, which is considered a violation of the behavior expected of a student at CityU. In order for students to learn about academic honesty, the University requires all students to complete an online tutorial, take a quiz and fill out a declaration.

Access this page to know more: