 The concern is that many uncontroversial examples of word meaning are not known to some speakers (and for any example, including “bachelor”, we could easily contrive a case in which it was not known to someone), and hence must be excluded by the apriorist. Even if one is convinced that whatever (directly) determines the extension of a word constitutes its meaning, there is still no guarantee that a particular (or general) theory of extension determination can be found, however implicit, in native speaker intuitions. Or, supposing it can be, that the process of deriving it from those intuitions is one of a priori demonstrative inference. Like other aspects of linguistic theory, the road from native speaker judgments to theory is presumably the ampliative method of science.