Translation guide
How to refer to the United States of America in Japanese, including formal names, common abbreviations, and natural usage.
Referring to the United States of America in formal or official contexts.
The full formal name, used in official documents, news, and formal speech.
アメリカ合衆国は50の州から成る。
The United States of America consists of 50 states.
Referring to the United States in everyday conversation.
The most common and natural way to say 'America' or 'the US' in Japanese. Used in almost all casual and semi-formal contexts.
来年アメリカに行く予定です。
I plan to go to the US next year.
アメリカの文化は多様だ。
American culture is diverse.
A common abbreviation used in news, formal writing, and compound words. Often seen in terms like 米国大統領 (US President).
Describing something as being from or related to the USA.
The standard way to say 'American' as an adjective. Simply add の to アメリカ.
これはアメリカの車です。
This is an American car.
A prefix used in compounds like 米軍 (US military) or 米映画 (American movie). Common in news and formal contexts.
米軍基地が沖縄にある。
There is a US military base in Okinawa.
Using the English abbreviation 'US' or 'U.S.' in Japanese text.
The abbreviation 'US' or 'U.S.' is sometimes used directly in Japanese, especially in product names, headlines, or when space is limited. It is understood but not a native Japanese abbreviation.
USオープンで優勝した。
He won the US Open.
アメリカ is the everyday word for the US. 米国 is more formal and often used in news or official contexts. In casual speech, アメリカ is always preferred.
アメリカに住んでいます。
I live in the US. (casual)
米国政府は声明を発表した。
The US government issued a statement. (formal)
米国大統領が来日した。
The US President visited Japan.