Plagiarism is defined as "copying or imitating the language, ideas, and/or thoughts of another and presenting this material as one's original work." -- from the UMW Honor System Guide and Constitution 2020 / 2021.
Whenever you use someone else's work, avoid plagiarism by citing the work you used.
What is a citation:
A citation is a way of giving credit to individuals when you use their creative and intellectual work. Citations include information such as titles, authors' names, publishers' names, and dates of publication.
When to use citations:
Citations are not needed when:
The citation style sometimes depends on the academic discipline of your course. Always be sure to verify the correct citation style with your professor.
Watch this quick video to get a better understanding of why it's so important to use citations.