According to the communitarian view, often attributed to the later Wittgenstein, language is social in the sense that having a (first) language essentially depends on meaning by one's words what members of some community mean by them. According to the interpersonal view, defended by Davidson, language is social only in the sense that having a (first) language essentially depends on having used (at least some of) one's words, whatever one means by them, to communicate with others. Even though these views (...) are importantly different, the arguments given for them--the interpretation argument in Wittgenstein's case, the triangulation argument in Davidson's--are interestingly similar. I see these arguments as complementary and argue that, contrary to what is widely thought, it is the interpersonal view, rather than the communitarian view, that they support. (shrink)