This paper provides a framework for understanding the various interpretations of the term “context” within User Experience (UX) and Human-Computer Interaction (HCI) research. Numerous studies examine how context influences interactions and user evaluations, often proposing different definitions or models. The reasons behind these variations are not always clear. Typically, differences are highlighted by comparing the division of context into subcategories, but there is little classification of these definitions. Discussions around subcategories do not necessarily address the varying relationship between the Environment, the User and the System. Additionally, questions about including or excluding disputed subcategories (e.g., internal context) and the confusion between “context” and “environment” remain. We propose classifying definitions by the scope attributed to the term “context”, ranging from the complete inclusion of both user and system characteristics to their entire exclusion. We identify four distinct approaches to defining context. We discuss a few definitions for each approach. By delineating these approaches, we aim to clarify the term “context” and explain the differences behind the variation of its meanings for UX and HCI research.