  We begin with the first, according to which the sense of a use of ‘today’ is its role. This account, in effect, denies that ‘today’ is an indexical. This is because the role of an expression is the rule that takes one from a particular utterance of the expression to its content on that use, which is the same across all uses. An expression's role is related to its linguistic meaning. The role of ‘today’ is a rule that takes one from a given use to the day of that use and the role of ‘I’ is a rule that takes one from a given use to the speaker of that use. So, if the sense of ‘today’ were its role, the same thought would be expressed by every utterances of (6), regardless of the day of occurrence. But, as we have seen, different utterances of (6) have different truth values. But then, by Truth, those utterances express different thoughts. Furthermore, the account violates Accept, as it is possible to rationally take differential attitudes towards different utterances of (6). The sense of a use of ‘today’,then, is not its role.