Hierarchy of Foreignness

From Orson Scott Card Wiki

Demosthenes' Hierarchy of Foreigness proceeds in four tiers. First, there are the utlanning, strangers recognized as human but from another city or country. Then there are the framlings who are strangers recognized as human but from another planet. Third are the raman, who are recognized as human but of another species.In Speaker for the Dead and Xenocide, the Piggies and the Buggers are identified as raman. Finally come the varelse, true aliens with whom no conversation is possible. These include animals, such as the cabra.