This paper seeks to review definitions, taxonomy, and models of mis/disinformation from multidisciplinary perspective. With fast developing internet, social media and online platforms are key channels for people to communicate and exchange information. Mis/disinformation is being spread vastly at the same time. Especially during the outbreak of the pandemic COVID-19, false information found online has led to serious consequences. The term "infodemic" was created as a result people died from COVID-19 related misinformation. However, little agreement has been reached from different disciplines. Researchers coming from distinct fields have come up with various taxonomy and models to characterize mis/disinformation. Moreover, the definition of mis/disinformation, false information, or fake news are still ambiguous. Therefore, it is important to review the existing literatures of mis/disinformation to help battle the ongoing infodemic.