Skip to Main Content
Library and Tutoring homepage

Plagiarism: What is Plagiarism

What is plagiarism?

Many people think of plagiarism as copying another's work or borrowing someone else's original ideas. But terms like "copying" and "borrowing" can disguise the seriousness of the offense. According to the Merriam-Webster Online Dictionary, to "plagiarize" means:
  • to steal and pass off (the ideas or words of another) as one's own
  •  to use (another's production) without crediting the source
  • to commit literary theft
  • to present as new and original an idea or product derived from an existing source
In other words, plagiarism is an act of fraud. It involves both stealing someone else's work and lying about it afterward.
But can words and ideas really be stolen?

According to U.S. law, the answer is yes. The expression of original ideas is considered intellectual property and is protected by copyright laws, just like original inventions. Almost all forms of expression fall under copyright protection as long as they are recorded in some way (such as a book or a computer file). All  of the following are considered plagiarism:

  • turning in someone else's work without giving credit
  • failing to put a quotation in quotation marks
  • giving incorrect information about the source of a quotation
  • changing words by copying the sentence structure of a source without giving credit
  • copying so many words or ideas from a source that it makes up the majority of your work, whether you give credit or not

Most cases of plagiarism can be avoided, however, by citing sources. Simply acknowledging that certain material has been borrowed and providing your audience with the information necessary to find that source is usually enough to prevent plagiarism.

Used with permission from Plagiarism.org

10 Types of Plagiarism from Turnitin.com

Get a better understanding of the common types of plagiarism by watching this short video produced by Turnitin.com.