noun
outer circumference; perimeter
Used for the outer boundary or distance around a shape, area, or object. Often contrasted with 内周 (inner circumference).
See also: 内周
この公園の外周は約2キロメートルです。
The perimeter of this park is about 2 kilometers.
外周を測ってフェンスの長さを決めます。
We'll measure the outer circumference to decide the length of the fence.
noun
Refers to the outer area or edge of a place, such as a city or facility. Often used in compound phrases like 外周部 (peripheral area).
工場は市の外周にあります。
The factory is on the outskirts of the city.
外周道路を走ると景色がいい。
The scenery is nice when you drive along the peripheral road.