Romani ( ROM-ə-nee, ROH-; also Romanes ROM-ən-iss, Romany, Roma; Romani: rromani ćhib) is an Indo-Aryan macrolanguage of the Romani people. The largest Romani dialects are Vlax Romani (about 500,000 speakers), Balkan Romani (600,000), and Sinte Romani (300,000). Some Romani communities speak mixed languages based on the surrounding language with retained Romani-derived vocabulary – these are known by linguists as Para-Romani varieties, rather than dialects of the Romani language itself. The differences between the various varieties can be as large as, for example, the differences between the Slavic languages.