Sino-Tibetan languages

A language family spoken across East, South, and Southeast Asia, including Chinese, Tibetan, Burmese, and hundreds of other languages.

Historical linguistics: The study of how languages change and how languages are related over time. Comparative historical methods are central to reconstructing relationships within this family.
Proto-Sino-Tibetan: A reconstructed ancestral language proposed as the source of Sino-Tibetan languages. Its sound system and vocabulary depend on comparative reconstruction across the family.
Sinitic languages: A group of languages that includes Mandarin, Cantonese, and other Chinese varieties. The family’s largest branch includes varieties spoken by hundreds of millions of people.
Sino-Tibetan homeland hypotheses: Competing proposals about the region where ancestral Sino-Tibetan languages were spoken. Geographic origins remain debated because linguistic reconstructions do not directly identify a homeland.
Sino-Tibetan phylogeny: The evolutionary relationships and branching history proposed for Sino-Tibetan languages. Available evidence has not produced a universally accepted family tree.
Comparative method: A procedure for establishing language relationships through systematic comparison of sounds and vocabulary. Researchers use it to test proposed groupings and reconstruct ancestral forms.
Sino-Tibetan classification: The grouping of Sino-Tibetan languages into branches and subgroups based on linguistic evidence. Competing classifications reflect disagreement over which similarities indicate common descent.
Tibetic languages: A group of languages that includes Standard Tibetan and related languages of the Tibetan Plateau and surrounding regions. Tibetic languages anchor a major branch traditionally contrasted with Sinitic.
Agricultural dispersal hypothesis: The hypothesis that language families spread alongside the expansion of farming populations. Some accounts connect Sino-Tibetan dispersal with early farming in northern China.
Trans-Himalayan languages: A name used by some scholars for languages commonly called Sino-Tibetan, especially beyond Sinitic. The alternative name can avoid implying that Chinese occupies a uniquely central position.

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