In "On What There Is" Quine notes that "there is a gulf between meaning and naming even in the case of a singular term which is genuinely a name of the object". This distinction can be made more clear with the famous example given by Frege: the 'Morning star' and the 'Evening star' both name the same thing, the same light seen in the skies. But each phrase has a different meaning, according to the differing conditions under which the referent exists.
Does this rather modern terminology bear any relation to Buridan's theories of signification and supposition? Buridan thought that signification occurred when a term represented a certain mental act, or concept, by which we understood the referent itself. The supposited term was the specific term, or sense, that was responsible for the formal reference to the object as understand granted the concept by which the object is understood and the intellective act of judgement associated with the concept therein.
So for example, in the signification of the terms 'Morning Star' and 'Evening Star' there is a possible distinction dictated by the different concept that is associated with each. It is only in supposition that the actual referent is identified, wherein the concept by means of which we understand the object is judged to be associated with a specific sense experience or further idea. Thus, for Buridan, supposition, and more importantly a complete account of reference, requires expression in a proposition in the form of a subject and predicate. If not, then all one is left with is a range of possible referents as various as our concepts of the term.
Is this connection a true comparison or is it misreading the intentions of both/either philisopher(s)? Is the similarity between each philosopher illusory or subdued by thoughts they had elsewhere on the subject?