Locale Fr Lu
Use when working with the French (Luxembourg) locale (`fr-LU`) — its endonym Français (Luxembourg), Latin 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 French (Luxembourg) locale — endonym Français (Luxembourg), written in the Latin script, left-to-right (LTR).
Identifiers
- BCP 47 tag:
fr-LU - ISO 639-1:
fr - ISO 639-3:
fra - Script: Latn (Latin)
- Region: LU (Luxembourg)
- Text direction: ltr — left-to-right (LTR)
Speakers (approximate)
- L1 (native): 15,000
- L2 (additional): 400,000
- L1+L2 (total): 415,000
Base locale
This is a regional variant of Locale Fr 001 (French), the base/macro locale for this language.
Pluralization
CLDR plural categories for this locale: one, many, other (3 forms).
- one —
i = 0,1(e.g. 0, 1) - many —
e = 0 and i != 0 and i % 1000000 = 0 and v = 0 or e != 0..5(e.g. 1000000, …) - other — everything else (e.g. 2~17, 100, 1000, 10000, …)
See Unicode Messageformat for writing plural messages using these categories.
Translating into this locale
Apply Locale Fr 001 with Luxembourg conventions. Luxembourgish, French, and German are all official; French is the language of legislation and much administration, while daily life is multilingual.
- Register: formal "vous" is the default in administration and business; Luxembourgish speakers often switch among languages, but written French follows the standard.
- Terminology: official institution names are often given in all three languages; use the exact forms on the government portal.
- Currency and formats: euro; day/month/year; check CLDR
fr-LUfor separators. - German and Luxembourgish influence: some vocabulary appears in speech only; keep Germanisms out of written French.
Common pitfalls
- Using German or Luxembourgish loanwords in formal French text.
- Translating institution names rather than using their official forms.
- The general pitfalls in Locale Fr 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.
- Microsoft Localization Style Guides, French (https://aka.ms/french-france-styleguide and https://aka.ms/french-canada-styleguide)
- Unicode CLDR locale data for number, date, and currency formats (https://cldr.unicode.org)