The work we present aims to clarify what is a context in the cognitive psychology of reasoning. Although the term context is found in the literature of different cognitive psychologists, we will argue that there is no clear analysis of what should be understood by that term. We will defend that the notion of context refers to different ideas, that is, the content, the format, the perspective, the nature of the logical contents and the environment of the problems. We will suggest that while these ideas may have overlaps, it is unclear that content, format, perspective, nature of logical content and environment are equivalent notions. Making these distinctions, we will argue, can not only help you understand what a context means, but it can also help you better understand the debates about how we humans reason or how we should reason.