Rundi linguistic data

Word order, tone system, gender/noun-class count, case marking, adposition direction, syllable structure, consonant inventory traits, vowel system, morphological alignment, script, register stratification, speaker count, and geographic area. Each row is one feature with Rundi's value visible; you can add other languages to read the same feature side by side.

Typological features are merged from URIEL+ (Mortensen et al.) and a curated set authored against descriptive grammars. Speaker counts come from Ethnologue and Glottolog. Geographic area is computed from the Asher 2007 world language atlas. Similarity scores combine genetic distance, typological overlap, and lexical-borrowing data.

They're extremely close — sometimes treated as dialects of a single language, sometimes as separate national standards. Rundi is the Burundi standard, Kinyarwanda is the Rwanda standard. Mutual intelligibility is essentially complete. The split is political and administrative; linguistically they sit closer to each other than English and American English.

Very, like other Bantu languages. A single Rundi verb form can encode subject agreement, one or more object agreements, tense, aspect, mood, polarity, and derivational extensions (applicative, causative, reciprocal, passive). The result is single-word sentences that translate into multi-word English clauses.

Rundi and Kinyarwanda are nearly the same language — clustering is mechanical. With Swahili, both are Bantu (Niger-Congo) sharing SVO order, noun-class systems, agglutinative morphology, and Proto-Bantu cognate vocabulary, though Swahili lost tone and Rundi kept it. The factor breakdown chip on the row tells you which dimensions contributed most.