You can expect to receive a very low grade, perhaps even a zero, on an assignment with plagiarized material. Most academic institutions define plagiarism with words similar to these. With the power of computer technology, plagiarism is easy. The ease of copying words in a computer's applications does not make it any less wrong but more likely that a student may choose to do so. Webster calls it 'literary theft' such as when you present an idea that actually belongs to someone else.
Theft is theft whether it involves words and ideas or physical property.
Writers may think that representation of others' ideas in their own words is not plagiarism. Yet ideas are individually creative things and should be recognized as such. Crews and VanSant wrote, Writers sometimes plagiarize ideas from outside sources without realizing that they are doing so. Put simply, you plagiarize if you present other writers' words and ideas as your own. Plagiarism is motivated out of self-interest.