Meaningful discourse requires a mutually accepted set of shared definitions to start. Otherwise the parties involved will unerringly talk past each other and misconstrue what the other is saying. George Lakoff, a cognitive scientist, has mapped this procedure brilliantly in several books ( The Political Mind being the most concise).
The excerpt . . . → Read More: Dead Wild Roses: Removing the Blinders of Privilege – A Political Moral Awakening