A (Cyrillic)

The Cyrillic letter A (А, а) is the first letter of the Cyrillic script, derived from Greek alpha; it commonly denotes the vowel /a/ and once held the numeric value 1 in early Slavic writing systems.

Overview

The Cyrillic letter A, written as А (uppercase) and а (lowercase), is the first character of the Cyrillic alphabet. It represents a basic open front/back vowel sound in most languages that use the script. Visually it matches the shape of the Latin A, but it belongs to a separate writing system and has distinct code points in character encodings.

Form and phonetics

As a letter, А typically denotes a sound similar to the vowel in English "father". Its exact quality can vary between languages and dialects — in some contexts it is a pure open vowel, in others it may be slightly centralized or shortened. The letter appears in the same upright triangular form in most fonts, though typographic styles (serif, sans-serif, cursive) alter stroke details.

History and development

The Cyrillic script was created in the First Bulgarian Empire and drew heavily on Greek letterforms. The letter А traces its ancestry to Greek alpha and ultimately to earlier alphabetic traditions. In Old Church Slavonic the letter was known by the name az or azǔ and, like many early letters, also functioned as a numeral, traditionally denoting the value 1 in early Slavic numbering systems.

Uses and transliteration

In modern orthographies that employ Cyrillic — including many Slavic languages and some non-Slavic languages — А is used as the standard letter for the /a/ vowel. Transliteration to Latin script typically renders it as "A". Examples of languages using the letter include Russian, Bulgarian, Serbian (in its Cyrillic form), Ukrainian and several Central Asian languages; a broader list of such languages that use Cyrillic varies by region and historical practice.

Characteristics and notable facts

Unicode assigns distinct code points to Cyrillic А: one for the uppercase and one for the lowercase form.
Although identical in shape to the Latin A, Cyrillic А is a separate character in computer encodings and should not be interchanged in digital text.
Historically it bore both a phonetic role and a numeric role in the early Cyrillic numeral system.

Distinctions and practical notes

Readers should note the visual similarity between Cyrillic and Latin letters does not imply identity: fonts, encoding, and language rules make them distinct. In typography and language learning, the Cyrillic А is taught and used as the foundational vowel, often introduced first when learners study the alphabet. For technical work with text, use proper Unicode characters rather than substituting Latin glyphs.