In Modiano's model of English, the center consists of users of English as an International Language, with a core set of features which are comprehensible to the majority of native and competent non-native speakers of English. The second circle consists of features which may become internationally common or may fall into obscurity. Finally, the outer area consists of five groups (American English, British English, other major varieties, local varieties, foreign varieties) each with features peculiar to their own speech community and which are unlikely to be understood by most members of the other four groups.