Use when translating or localizing UI strings, marketing copy, documentation, or any source text into Ukrainian (uk). Ukrainian is NOT Russian — enforces Ukrainian letters і/ї/є/ґ and vocabulary (наразі/також/друкувати not Russian сейчас/тоже/печатать), 7-case grammar with active vocative (користувачу!), 3-gender agreement, ICU one/few/many/other plurals, perfective/imperfective aspect, Ви/ти formality, apostrophe usage (комп'ютер, п'ять), Latin tech identifiers inside Cyrillic, false-friend awareness (збуджений is sexual — use захоплений), and «ялинки» quotes.
