Translation guide
The distance around a circle or round object, or the outer edge of something.
circumference of a circle
circumference of an object
The mathematical or physical measurement around a circle or circular object.
The measurement around a physical object like a tree, waist, or pipe.
Used for the distance around an object or area, such as a tree trunk or a lake.
The circumference of that tree is 3 meters.
Specifically for the girth or circumference of a body or torso, like waist measurement.
Outer circumference or perimeter, often used for running tracks or property boundaries.
The line or area forming the outer limit of something, not necessarily circular.
円周 (enshuu) is strictly for circles. 周囲 (shuui) is for the distance around any object or area, and also means 'surroundings'. 外周 (gaishuu) emphasizes the outer boundary, like a track or property line.
この図形の周長を求めなさい。
Find the perimeter of this shape.
Please measure your waist circumference.
このトラックの外周は４００メートルです。
The outer circumference of this track is 400 meters.
敷地の外周にフェンスを設置した。
We installed a fence around the circumference of the property.