as a polite word for you in much of Europe (the tu-vous distinction). See also Comparative method Language contact Linguistic typology Linkage (linguistics) Mass comparison Wave model World Atlas of Language Structures Notes References Abbi, Anvita. (1992). Reduplication in South Asian Languages: An Areal, Typological, and Historical Study. India: Allied Publishers. Blevins, Juliette. (2017). Areal sound patterns: From perceptual magnets to stone soup. In R. Hickey (Ed.), The Cambridge Handbook of Areal Linguistics (pp. 88–121). Cambridge: Cambridge University Press. Chappell, Hilary. (2001). Language contact and areal diffusion in Sinitic languages. In A. Y. Aikhenvald & R. M. W. Dixon (Eds.), Areal Diffusion and Genetic Inheritance: Problems in Comparative Linguistics (pp. 328–357). Oxford: Oxford University Press. Enfield, N. J. (2005). Areal Linguistics and Mainland Southeast Asia. Annual Review of Anthropology, 34, 181-206. Kirby, James & Brunelle, Marc. (2017). Southeast Asian Tone in Areal Perspective. In R. Hickey (Ed.), The Cambridge Handbook of Areal Linguistics (pp. 703–731). Cambridge: Cambridge University Press. Matisoff, J. A. (1999). Tibeto-Burman tonology in an areal context. In Proceedings of the symposium Crosslinguistic studies of tonal phenomena: Tonogenesis, Japanese Accentology, and Other Topics (pp. 3–31). Tokyo: Tokyo University of Foreign Studies, Institute for the Study of Languages and Cultures of Asia and Africa. Sprachbund Language geography