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Japanese linguistic data
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Common questions about Japanese
What linguistic data does this Japanese page show?
Word order, tone (pitch accent), gender 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 Japanese's value visible; you can add other languages to read the same feature side by side.
Where do the Japanese data points come from?
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.
Is Japanese a tonal language?
Not in the Mandarin or Cantonese sense. Japanese has pitch accent: each word has a fixed high-low pitch pattern, and minimal pairs differ in where the pitch drops (hashi 'chopsticks' has a high-low pattern, hashi 'bridge' has low-high). Standard Tokyo Japanese has only two tone heights (H, L) and a culminative accent rule.
How do the three Japanese scripts work together?
Kanji are logographic Chinese-derived characters used for content words (nouns, verb stems, adjective stems). Hiragana is a syllabary used for grammatical particles, verb endings, and native words without standard kanji. Katakana is a parallel syllabary used for foreign loanwords, scientific names, emphasis, and onomatopoeia. A typical sentence mixes all three, plus occasional Latin script (rōmaji) and Arabic numerals.
Why does Japanese have a moderate similarity score with Korean despite no proven genetic link?
They're not in the same family by mainstream consensus, but they share typology heavily: SOV, agglutinative morphology, postpositions, no grammatical gender, honorific systems, topic-marking particles (は/는). Some basic vocabulary may be shared via early contact. The score weights typology and contact alongside genetic ancestry. The factor breakdown chip on the row tells you which dimensions contributed most.
Sources for Japanese
The grammatical descriptions on this page are informed by the following published reference and descriptive grammars. Grammatical facts themselves are not subject to copyright; the scholars who documented them deserve attribution.
- Shibatani, Masayoshi (1990). The Languages of Japan. Cambridge University Press.
- Tsujimura, Natsuko (2014). An Introduction to Japanese Linguistics, 3rd ed. Wiley-Blackwell.
- Makino, Seiichi & Tsutsui, Michio (1986). A Dictionary of Basic Japanese Grammar. Tokyo: The Japan Times.
- Makino, Seiichi & Tsutsui, Michio (1995). A Dictionary of Intermediate Japanese Grammar. Tokyo: The Japan Times.
- Kuno, Susumu (1973). The Structure of the Japanese Language. Cambridge, MA: MIT Press.
- Hinds, John (1986). Japanese: Descriptive Grammar. London: Croom Helm.