Abstract
It is commonly held that the context with respect to which an indexical is interpreted is determined independently of the interpretation of the indexical. This view, which I call Context Realism, has explanatory significance: it is because the context is what it is that an indexical refers to what it does. In this paper, I provide an argument against Context Realism. I then develop an alternative that I call Context Constructivism, according to which indexicals are defined not in terms of features of utterance situations, but rather in terms of roles that objects could play.