In general, plagiarism is deliberate and unintentional use of someone's words (verbal and written), ideas (concrete and implied), physical works (including artwork and photography), and digital content (including images, video, audio, etc.) without giving them credit.
Merriam-Webster Online Dictionary defines "plagiarize" as:
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
“Plagiarize.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/plagiarize. Accessed 2017.
It is important for you can plagiarize without meaning to, and regardless of your intent, there can be consequences by the university. The university and the library want to help you learn to avoid it.
This guide is intended to help you begin to understand plagiarism in college, the many different types of plagiarism, how to avoiding plagiarism, and the additional resources available to you.
Bainbridge State College. (2010). "Plagiarism: How to Avoid It." YouTube. Accessed July 10, 2018.