Translation guide
The outer edge or boundary of an area, or the length of that boundary. In Japanese, different words are used depending on whether you mean the physical boundary line, the surrounding area, or the mathematical length.
The physical line or border that encloses a space, such as a fence, wall, or marked boundary.
General term for the perimeter or circumference of an area. Commonly used for the outer edge of a property, park, or object.
There is a tall fence around the perimeter of the park.
Outer perimeter or circumference, often used for roads, tracks, or the outer edge of a facility.
Security guards patrol the perimeter of the factory.
Boundary line, often used in legal or property contexts to mark the exact dividing line.
Please check the perimeter line of the property.
The total distance around the edge of a shape or area, especially in mathematics or measurement.
The zone or strip of land just inside the fence or edge, often for security or patrol.
周囲 is the most general term for the outer edge of any area. 外周 emphasizes the outer circuit, often for roads or patrols. 境界線 is specifically a legal or property boundary line.
The loanword ペリメーター exists but is rare and technical. Stick to native Japanese terms for natural communication.
The perimeter of this land is about 200 meters.
Sensors are installed along the perimeter of the base.