 Context plays a role in two separate distinctions. The first distinction is between context and that which modifies the context. Here the context is the information state or a suitable abstraction thereof (compare the entry on  semantic conceptions of information).  The context modifier is (the meaning of) the received informational item. The information cannot be received without the correct kind of presupposed information state. The proper analogues in classical static predicate logic (compare the entries on  classical logic  and  first-order model theory)  are as follows: the information state is an assignment (environment) or a set of assignments, and the received information is a set of assignments. The second distinction is between context and content. Here the context is something like the storage capacity of the receiver and various other features that could influence how new expressions/informational items are interpreted. The content is the (factual, truth conditional) information that is stored. Thus, e.g., the context in this sense could be a set of registers/variables or in DRT/FCS terms, discourse referents or files. The content would then be some set of assignments or, perhaps, world/assignment pairs constraining the values of these discourse referents and the set of worlds that are live candidates for the actual world.