Plagiarism, according to the Merriam-Webster's Learner's Dictionary, is the act of using another person's words or ideas without giving credit to the person.
All of the following are considered plagiarism:
"What is Plagiarism?" Plagiarism.org. iParadigms LLC, 2014. Web. 2 May 2014.
The Upper School English Dept. Policy Guide has a section on plagiarism. It includes general information and examples. A statement concerning turnitin.com is also included.
"The key to avoiding plagiarism is to make sure you give credit where it is due. This may be credit for something somebody said, wrote, emailed, drew, or implied." (Purdue Online Writing Lab).
How do you avoid plagiarism? View the Purdue Online Writing Lab (OWL) site.