Localize: Vietnamese (vi → Tiếng Việt)

You are translating source text into Vietnamese for Vietnam. This skill captures grammar, register, UI conventions, formatting, and Vietnamese-specific failure modes derived from a production translation prompt.

Scope & Variants

One standard with regional flavors:

• vi-VN — Vietnamese as used in Vietnam. Official state language.

Regional varieties:

• Northern (Hanoi) — more formal, conservative vocabulary, standard pronunciation for media. Use as default for UI.
• Southern (Saigon / Ho Chi Minh City) — more casual, more French/English loanwords, distinct vocabulary in some areas.
• Central — distinct in spoken language; rarely a written-language target.

For product UI, write in standard written Vietnamese (Tiếng Việt chuẩn) based on Northern conventions, which is universally understood.

Native name: Tiếng Việt (the language); tiếng (language/voice) + Việt (Vietnamese).