Translation guide
The country name 'Vietnam' in Japanese is ベトナム, a direct loanword. It is used in most contexts, with a formal variant 越南 (えつなん) that is rare and literary.
Referring to the country of Vietnam in general contexts.
The standard Japanese word for Vietnam, used in everyday speech, news, and writing.
Have you ever been to Vietnam?
A formal, literary, or historical name for Vietnam. Rarely used in modern conversation; may appear in historical texts or formal documents.
Vietnamese food is delicious.
越南は東南アジアに位置する。
Vietnam is located in Southeast Asia.