U (Cyrillic) — the letter У (uppercase У, lowercase у)

Form and pronunciation

The glyph appears as У and у. Phonetically it most often denotes the vowel /u/ (IPA). Depending on language and prosodic context the vowel can be short or long, and in some languages unstressed occurrences may be slightly centralized. The letter does not itself indicate palatalization; palatalized contrasts are marked by other letters or diacritics in specific Cyrillic orthographies.

History and origin

The Cyrillic У traces its ancestry to the Greek upsilon, which also gave rise to the Latin letter U. In early Cyrillic orthography an old digraph called Uk (Ѹ, ѹ) represented the same vowel; over time the simplified single-letter form У became standard in most traditions.

Variants, codes and transliteration

• Unicode: U+0423 (uppercase), U+0443 (lowercase).
• Transliteration: typically rendered as the Latin letter u in most scholarly and practical systems.
• Regional distinctions: some languages with Cyrillic alphabets add related letters (for example Belarusian uses Ў as a separate letter representing a semi-vowel /w/), but У remains the basic vowel sign.

Usage and examples

Words beginning with У are common across Russian, Ukrainian, Belarusian and other languages: for example Ukrainian Україна (Ukraine) begins with У pronounced /u/. The letter appears throughout vocabulary to mark the /u/ vowel in syllables and does not usually serve as a consonant.

Notable facts

Alphabetical position can vary between national alphabets; in modern Russian orthography У occupies a fixed slot among 33 letters. The letter's straightforward correspondence to a single vowel sound makes it among the more stable and widely recognized elements of the Cyrillic writing system.