 However, the 20th century saw a vicious and sometimes relentless attack on the distinction between facts about meaning and facts about reference (see the entry on the    analytic/synthetic distinction).    If the line between these two is blurry, there will very likely be cases in which the line between ambiguity and sense-generality is blurry as well (and not just epistemologically). Let’s indulge in some possible-world anthropology on a group that uses a term, ‘gavagai’ (Quine 1960). Furthermore, I stipulate (perhaps counter-possibly) that the world is a four-dimensional world with respect to the referent of ‘gavagai’ so if they refer at all with ‘gavagai’, they refer to something made up of stages. Now we sit down to write the lexicon of the world’s inhabitants and we come to ‘gavagai’. We write: