Language Families - We Study The World

About Language Families

Languages change over generations. When groups separate, their speech can gradually become different languages. Linguists compare vocabulary, sound changes, grammar, and historical evidence to identify languages that descended from a common ancestor.

Visual learning: These pages use real artifact photographs, inscriptions, sign-language references, and writing-system images from Wikimedia Commons. Final image URLs should be browser-tested.

**Rosetta Stone**The Rosetta Stone preserves the same decree in multiple writing systems and helped scholars decipher Egyptian hieroglyphs.

**Ancient Inscription**Written inscriptions give linguists direct evidence about earlier languages.

**Sign Language**Sign languages use hands, face, body, and space as full natural languages.

**World Writing**Human societies developed many scripts to record language.

What Is a Language Family?

A language family is a group of languages descended from a shared ancestor.

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Indo-European

Indo-European is one of the world's most widely distributed families.

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Sino-Tibetan

Sino-Tibetan includes Chinese varieties and many languages of the Himalayas and Southeast Asia.

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Niger-Congo

Niger-Congo includes a very large number of African languages.

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Austronesian

Austronesian languages stretch from Madagascar across Island Southeast Asia and far into the Pacific.

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Afroasiatic

Afroasiatic includes Arabic, Hebrew, Amharic, Hausa-related branches, and ancient Egyptian.

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Language Isolates

Some languages have no proven living relatives.

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How Linguists Know

Regular sound correspondences provide stronger evidence than a few similar-looking words.

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What Is a Language Family?

English, Spanish, Hindi, Russian, Greek, Persian, and many others belong to the Indo-European family even though they can sound very different today.

Indo-European

Its branches include Germanic, Romance, Slavic, Indo-Iranian, Celtic, Greek, Baltic, Armenian, Albanian, and others.

Sino-Tibetan

The exact internal classification remains an active area of linguistic research.

Niger-Congo

Bantu languages form one major branch spread across much of central, eastern, and southern Africa.

Austronesian

Their distribution reflects remarkable prehistoric seafaring and migration.

Afroasiatic

Its languages are found across North Africa, the Horn of Africa, and the Middle East.

Language Isolates

Basque is a famous European example. An isolate may be the last surviving member of a once larger family.

How Linguists Know

Borrowing can make unrelated languages share vocabulary, so linguists look for systematic patterns.