can truthfully say we have knowledge. That is, when we attribute knowledge to someone, the context in which we use the term 'knowledge' determines the standards relative to which "knowledge" is being attributed (or denied). If we use it in everyday conversational contexts, the contextualist maintains, most of our claims to "know" things are true, despite skeptical attempts to show we know little or nothing. But if the term 'knowledge' is used when skeptical hypotheses are being discussed, we count as "knowing" very little, if anything. Contextualists use this to explain why skeptical arguments can be persuasive, while at the same time protecting the correctness of our ordinary claims to "know" things. This theory does not allow that someone can have knowledge at one moment and not the other, which would not be a satisfying epistemological answer. What contextualism entails is that in one context an utterance of a knowledge attribution can be true, and in a context with higher standards for knowledge, the same statement can be false. This happens in the same way that 'I' can correctly be used (by different people) to refer to different people at the same time. What varies with context is how well-positioned a subject must be with respect to a proposition to count as "knowing" it. Contextualism in epistemology then is a semantic thesis about how 'knows' works in English, not a theory of what knowledge, justification, or strength of epistemic position consists in. However, epistemologists combine contextualism with views about what knowledge is to address epistemological puzzles and issues, such as skepticism, the Gettier problem, and the Lottery paradox. Contextualist accounts of knowledge became increasingly popular toward the end of the 20th century, particularly as responses to the problem of skepticism. Contemporary contextualists include Michael Blome-Tillmann, Michael Williams, Stewart Cohen, Keith DeRose, David Lewis, Gail Stine, and George Mattey. The standards for attributing knowledge to someone, the contextualist claims, vary from one user's context to the next. Thus, if I say "John knows that his car is in front of him", the utterance is true if and only if (1) John believes that his car is in front of him, (2) the car is in fact in front of him, and (3) John meets the epistemic standards that my (the speaker's) context selects. This is a loose contextualist account of knowledge, and there are many significantly different theories of knowledge that