There's just no unambiguous way to distinguish various dialects, sociolects, and other linguistics varieties into discrete "languages" easily. "Mutual intellig

There's just no unambiguous way to distinguish various dialects, sociolects, and other linguistics varieties into discrete "languages" easily. "Mutual intelligibility" is also problematic. In a highly multilingual community, people may have a high passive knowledge of another clearly distinct language that they can understand each other fine when speaking distinct languages/varieties.