suffix
sphere; circle; range; area; zone; bloc
Productive suffix that attaches to nouns to form words meaning a bounded domain, sphere of influence, or geographical/cultural zone. Common in compounds like 経済圏 (economic bloc), 首都圏 (metropolitan area), and 勢力圏 (sphere of influence).
東京は首都圏の中心です。
Tokyo is the center of the metropolitan area.
この地域は経済圏として
noun
Technical mathematical term for a category in the sense of category theory. Rare outside specialized contexts.
数学の圏論では、圏は対象と射からなる。
In category theory, a category consists of objects and morphisms.
This region is developing as an economic bloc.