Es (Cyrillic letter С, с)

Characteristics

The character has two graphic forms, uppercase С and lowercase с. Phonetically it normally denotes an unvoiced /s/; in some languages and environments it may be palatalized (softened) before front vowels, yielding a sound notated approximately /sʲ/. In romanization and transliteration systems it is typically rendered as the Latin letter "s."

History and origin

The Cyrillic letter Es derives from the Greek letter sigma. Early creators of the Cyrillic script adapted many Greek letter shapes and names to write Slavic sounds; the link to Greek is reflected in form and function. For background on the Greek ancestor see Greek sigma. Its phonetic counterpart in the Latin alphabet is the letter S.

Usage and examples

Es is widespread in languages that use Cyrillic, including Russian, Ukrainian, Bulgarian, Serbian (Cyrillic variant), Belarusian and others. Examples include common words beginning with the letter, such as the Russian preposition meaning "with" (с), or nouns and verbs where it conveys the /s/ sound. In orthography it participates in regular spelling rules and alternations involving softness and voicing.

Distinctions and typographic notes

• Do not confuse Cyrillic С with Latin C visually; they look identical but usually represent different sounds in their alphabets.
• In computing and fonts, correct encoding (Unicode) ensures the Cyrillic and Latin characters remain distinct despite similar shapes.
• Its place in specific alphabet orders varies by language; for example, in modern Russian the letter appears in the central portion of the alphabet.

Because of its clear origin and simple phonetic value, Es remains one of the most stable and easily learned letters for readers and learners of Cyrillic scripts.