ＵＳＡ|ユー・エス・エーyuu esu ee

1. nounUnited States of America; USA
2. nounUnited States Army

• Synonymアメリカ合衆国アメリカがっしゅうこくFormalThe full formal country name, used in official documents and diplomacy; in daily conversation people say 「アメリカ」.
• Synonym合衆国がっしゅうこくNeutralShort form of the formal country name; also a general term for a federal state, as in 「合衆国憲法」.
• SynonymアメリカNeutralOld-fashioned kanji spelling of the country name, rarely seen today; the 「米」 abbreviation derives from it.
• SynonymＵ．Ｓ．Ａ．NeutralDotted form of ＵＳＡ, used in formal writing or on signs; uncommon in daily use.
• Related米国べいこくNeutralKanji abbreviation for the US, standard in news and official writing, as in 「米国大統領」; more formal than the English abbreviations.
• RelatedＵＳユー・エスNeutralEnglish abbreviation used mostly in compounds like 「USドル」; rarely stands alone.
• RelatedＵ．Ｓ．NeutralDotted spelling of the abbreviation, seen mainly in English-language materials; not used in everyday Japanese.

In everyday speech say 「アメリカ」; news writing prefers 「米国」. 「ＵＳＡ」 itself appears mostly on signs, in slogans, and on sportswear. For the formal country name use 「アメリカ合衆国」; the dotted forms Ｕ．Ｓ． and Ｕ．Ｓ．Ａ． are rare in everyday use.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. アメリカ合衆国あめりかがっしゅうこくの英語えいごでの呼び方よびかた。
2. アメリカ合衆国あめりかがっしゅうこくの陸軍りくぐん。