We use the Merriam-Webster definitions, where disinformation is characterized by its intent to deceive.
Disinformation, also called propaganda or fake news, refers to any form of communication that is intended to mislead. The information in the communication is purposefully false or contains a misrepresentation of the truth. Disinformation can be used by individuals, companies, media outlets, and even government agencies.
Types of Disinformation
Quoted from: Ungvarsky, J. (2020). Disinformation. In Salem Press Encyclopedia. Salem Press.
Our friends at the University of Iowa Libraries put together a helpful seven part video series on Research and Disinformation
Getting started:
Google Scholar - Free resource which can be linked to MIT Libraries for full text and cited reference