noun
federation; confederation; commonwealth; union
Refers to a political entity formed by a union of states or regions, such as a federation or commonwealth. Often used in official names like ロシア連邦 (Russian Federation).
ロシア連邦は世界で最も広い国です。
The Russian Federation is the largest country in the world.
アメリカ合衆国は連邦制を採用している。
The United States of America adopts a federal system.