Khakas vowels include three unique letters not found in Russian: Ӓ (near-open front ae-vowel, like English "cat"), Ӧ (front rounded ö-vowel, like German schön), and Ӱ (close front rounded ü-vowel, like German über). These three use diaeresis (two dots above) as their diacritic.
Khakas maintains Turkic vowel harmony between front vowels (Ӓ, Е, И, Ӧ, Ӱ, Э) and back vowels (А, О, У, Ы). The unique Khakas vowel Ӓ fills a phonological slot that most other Turkic Cyrillic alphabets encode differently.
The Khakas consonant set includes Ң — the unique velar nasal ng-sound (as in "sing") — which is the only unique consonant in Khakas Cyrillic. The remaining consonants are shared with Russian Cyrillic.
Khakas phonology features a contrast between plain and palatalised consonants, and the kh-sound (Х) is particularly prominent in Siberian Turkic. The Khakas ch-sound (Ч) and sh-sound (Ш) follow standard Turkic patterns.
The 4 pairs of unique letters in the Khakas Cyrillic alphabet: Ӓ/ӓ (ae-vowel, A with diaeresis), Ң/ң (velar nasal ng), Ӧ/ӧ (front rounded ö, O with diaeresis), and Ӱ/ӱ (close front rounded ü, U with diaeresis).
The three diaeresis-marked vowels (Ӓ, Ӧ, Ӱ) are distinctive to Khakas among Turkic Cyrillic alphabets — most other Turkic languages use different letter shapes for these sounds (e.g., Ə for schwa, Ө for ö, Ү for ü). The Khakas forms with diaeresis reflect a different Soviet-era orthographic convention for the Yenisei Turkic branch.
Khakas uses Arabic numerals (0–9) in modern writing. The native Khakas number words: нöл (0), пір (1), ікі (2), ӱс (3), тöрт (4), пис (5), алты (6), читі (7), сигіс (8), тоғыс (9).
Khakas numbers illustrate the unique vowels: нöл (zero) uses Ӧ, ӱс (three) uses Ӱ, and тöрт (four) uses Ӧ. Note also that Khakas uses П where most Turkic languages use Б for "one" (пір vs бир) — a distinctive Siberian Turkic feature.
A complete view of all 36 Khakas letters in alphabetical order from А to Я.
The Khakas Cyrillic alphabet places its four unique letters (Ӓ after А, Ң after Н, Ӧ after О, Ӱ after У) adjacent to their Russian base letters. This 36-letter alphabet has been the official writing system of the Khakas language since Soviet-era standardisation.
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