Semantic Type in Linguistic Context Jacques Lamarche Departement de Linguistique, UQAM In this presentation, I discuss the semantic content of the French verb ETRE 'to be' and its role in the definition of semantic types. The standard description of a copular verb like ETRE is that it relates a predicate argument () to an entity argument (). I argue that this description of ETRE is not appropriate because it encodes in the lexicon properties of syntactic constructions. This position follows from the minimal assumption that, in Generative Grammar, lexical description should be "terminal", that is, it should not include properties specific to the phrases and sentences where a lexical item occurs. Applying this terminality constraint, I argue that 1) ETRE selects one argument, and nothing else. The notion of entity arises when the verb is combined with its argument. 2) The categories that are relevant for the notion of entity are VP and PP--not NP as is generally assumed. 3) The ability of a phrase to be a predicate is not associated with a given part-of-speech category. Rather, predication arises through a specific mode of combination in syntax. I show that with a terminal description of ETRE, we can account for type-shifting phenomena that characterize the verb's different uses without resorting to type-shifting rules or multiple lexical representations. This approach makes us rethink our position on the role of syntax in accounting for type ambiguities, the mapping between conceptual, linguistic and logical categories, and the question of monosemy/homonymy/polysemy in the grammar of natural language.