 If we generalize cluster theories to allow them to include identifying properties extracted from use (instead of restricting them to dispositional identifying descriptions), we can treat use theories as a species of cluster theory. Indeed, a general umbrella is a good idea if it turns out that dispositional identifying descriptions play a part in determining reference alongside “the actual pattern of dealings” (see Lewis 1984: 226–27, for this argument, and Unger 1983 for the cases on which it is based). For example, Evans observes that one’s utterance of “Anir” cannot refer to King Arthur’s son if one believes it to be the name of Arthur’s burial place instead (1973: 198; see Dickie 2011 for a host of similar examples).