Translation guide
The United Nations is an international organization. In Japanese, it is almost always referred to by its abbreviated name, 国連 (Kokuren), in everyday speech and writing. The full official name is used only in very formal or official contexts.
United Nations
Most common, used in news, conversation, and general writing.
Referring to the United Nations as an organization in everyday contexts.
The standard abbreviation for the United Nations. Used in news, conversation, and most writing. This is the natural choice for English speakers.
The UN works for international peace.
He works at the UN.
The full official name. Used in formal documents, official speeches, or when the full name is required. Less common in daily conversation.
The United Nations Charter was signed in 1945.
Using 'United Nations' to modify another noun.
Attach 国連の to the noun to mean 'UN ~'. This is the most natural pattern.
In compound nouns, 国連 can directly attach to some words, especially in news headlines or set phrases.
UN Security Council
English speakers often say 'the United Nations' in full, but in Japanese, 国連 is overwhelmingly more common. Using 国際連合 in casual conversation sounds stiff and unnatural.
UN General Assembly