International audienceThis paper examines the syntactic and semantic behaviour of the morpheme že 'that' in subordinate and independent clauses in Czech. I show that že does not have the same properties in these two contexts. In embedded contexts, že combines with a declarative clause (proposition) and obligatorily marks its syntactic dependence. In independent contexts, že appears in interrogative clauses or in declarative clauses associated with exclamation, and it triggers a particular (echo or tag) interpretation. However, in all contexts, že seems to indicate a discrepancy between the speaker's and someone else commitment to a same proposition
