Translation guide
The English word 'commonwealth' has several distinct meanings: a political entity or association of states, the general welfare or public good, and a historical term for a republic. This guide helps learners express these concepts naturally in Japanese.
Referring to the voluntary association of mostly former British colonies, or similar international groupings.
General term for a federation or commonwealth of states. Often used in the official Japanese name for the Commonwealth of Nations.
イギリス連邦
the British Commonwealth
連邦に加盟している国々
countries belonging to the commonwealth
Katakana loanword directly from English. Commonly used in proper names like 'Commonwealth of Nations' or 'Commonwealth Games'.
コモンウェルスゲームズ
the Commonwealth Games
Means 'community' or 'union'. Can be used for commonwealth-like associations, but less specific than 連邦.
独立国家共同体
Commonwealth of Independent States
The well-being of the public; the common good.
Standard term for public welfare or the common good, often used in legal and political contexts.
公共の福祉のために働く
to work for the commonwealth
Public interest or common benefit. Slightly more formal and often used in contrast to private interest.
公益を優先する
to prioritize the commonwealth
Literally 'common interest'. A more general phrase that can convey the idea of shared benefit.
共通の利益を守る
to protect the commonwealth
Referring to a republican form of government, especially historical ones like the Commonwealth of England.
Official designation used by some U.S. states, which has no legal difference from 'state'.
In Japanese, U.S. states are simply referred to by their name + 州 (しゅう). The term 'commonwealth' is not translated separately.
The katakana word may be used in very specific contexts to explain the designation, but it is not natural in normal conversation.
ペンシルベニアは正式にはコモンウェルスと呼ばれる。
Pennsylvania is officially called a commonwealth.
When referring to U.S. states like Pennsylvania or Massachusetts, simply use the state name + 州 (しゅう). Translating 'commonwealth' as 連邦 or 共和国 would be incorrect and confusing.
連邦 (れんぽう) is used for federations or commonwealths of states (like the Commonwealth of Nations), while 共和国 (きょうわこく) is used for republics. For historical commonwealths that were republics, 共和国 is appropriate.
クロムウェルの共和制
Cromwell's commonwealth