Skills on AI

Locale Ru Ru

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Use when working with the Russian (Russia) locale (`ru-RU`) — its endonym Русский (Россия), Cyrillic script, left-to-right (LTR) direction, or spoken-population data. Reference data and translation guidance (register, grammar, idiom, typography) for this specific locale; see [[locale]] for general i18n/l10n concepts (BCP 47, plural rules, RTL) that apply across all locales.

Reference data for the Russian (Russia) locale — endonym Русский (Россия), written in the Cyrillic script, left-to-right (LTR).

Identifiers

  • BCP 47 tag: ru-RU
  • ISO 639-1: ru
  • ISO 639-3: rus
  • Script: Cyrl (Cyrillic)
  • Region: RU (Russia)
  • Text direction: ltr — left-to-right (LTR)

Speakers (approximate)

  • L1 (native): 118,000,000
  • L2 (additional): 24,000,000
  • L1+L2 (total): 142,000,000

Base locale

This is a regional variant of Locale Ru 001 (Russian), the base/macro locale for this language.

Pluralization

CLDR plural categories for this locale: one, few, many, other (4 forms).

  • one — v = 0 and i % 10 = 1 and i % 100 != 11 (e.g. 1, 21, 31, 41, …)
  • few — v = 0 and i % 10 = 2..4 and i % 100 != 12..14 (e.g. 2~4, 22~24, 32~34, 42~44, …)
  • many — v = 0 and i % 10 = 0 or v = 0 and i % 10 = 5..9 or v = 0 and i % 100 = 11..14 (e.g. 0, 5~19, 100, 1000, …)
  • other — everything else

See Unicode Messageformat for writing plural messages using these categories.

Translating into this locale

Apply Locale Ru 001 with the conventions of Russia.

  • Formats: ruble (₽) after the amount; dates 17.10.2026 or 17 октября 2026 г.; 24-hour clock; decimal comma; metric units.
  • Law and terminology: the Russian language law requires use of the literary language norms in official contexts and consumer information; follow dictionaries approved for this purpose and check requirements for the product.
  • Names: Russian names have a patronymic (Иван Петрович Сидоров). Formal address uses first name plus patronymic; forms must collect and show all three parts.
  • Tone: formal and reserved in business; humor is acceptable in consumer brands.

Common pitfalls

  • Requiring only first and last names in forms.
  • Using Ukrainian or Belarusian forms for Russian text.
  • The general pitfalls in Locale Ru 001 also apply.

Learn more

  • Locale for BCP 47 identifiers, locale-sensitive formatting, pluralization, and text-direction concepts that apply across all locales.
  • Unicode Messageformat for writing plural/selection messages correctly for this locale's grammar.
  • Gramota.ru (https://gramota.ru)

View locale-ru-ru/SKILL.md on GitHub