I develop a challenge for the view that 'believe' is a propositional attitude verb based on two observations: (i) 'believe' can embed 'in O', and (ii) 'in O' does not denote a proposition. To develop my challenge, I argue (section 2) that 'believe' is not homonymous or polysemous between a propositional belief-that and non-propositional belief-in interpretation, and (section 3) that type-shifting 'in O'’s denotation to a proposition falsely predicts that belief-in and belief-that reports are equivalent.

The paper argues for a model of polysemy based on the blueprint offered by Paul Pietroski whereby the meaning of a lexical item is an instruction to fetch a concept from an address. We show that the bare idea of fetching admits of a deep construal, where a concept is fetched, and a shallow construal, where the instruction merely links a lexical item to an address without automatically retrieving anything from the address; retrieval only occurs when the item is embedded (...) within a syntactic structure. We offer considerations in favour of the shallow construal, which is consistent with a root conception of lexical items. (shrink)