Plagiarism is "the practice of taking someone else's work or ideas and passing them off as one's own" (source: Oxford Languages). As a student, you have a responsibility to yourself, to your institution, and to the academic community to provide yourself with the best learning experience possible and to contribute meaningfully to the academic community. Beyond letting yourself down, plagiarism is a punishable offence at most academic institutions, and it will affect how others see your academic integrity.
Direct Plagiarism: A word-for-word copy of someone else's work, without quotation marks or citations.
Self-Plagiarism: When a student turns in previous work for a current assignment without the permission of both professors.
Mosaic Plagiarism: Borrowing entire phrases (or finding synonyms) from someone else's work without quotation marks or citations.
Accidental Plagiarism: When a person does not cite their sources, misquotes sources, or unintentionally paraphrases a source without citation.
Source: Bowdoin