 If properties are tropes, some trope theorists have proposed, this conclusion can be resisted (cf. Robb 1997; Martin and Heil 1999; Heil and Robb 2003; for a hybrid version cf. Nanay 2009; cf. also Gozzano and Orilia 2008). To see this, we need first to disambiguate our notion of a property. This notion, it is argued, is really two notions, namely: