Translation guide
How to express 'center line' in Japanese, depending on context: road markings, sports courts, technical drawings, or figurative uses.
The painted line dividing a road into lanes or separating opposing traffic.
Standard term for the center line on a road. Often used in traffic contexts.
You must not cross the center line to overtake.
Common loanword from English, widely understood. Slightly more casual than 中央線.
This road has no center line.
The line dividing a sports court into halves, e.g., in tennis, basketball, or volleyball.
A line that passes through the center of an object or shape, often used in blueprints or diagrams.
A central dividing line in abstract senses, such as in politics, opinions, or strategies.
Can be used metaphorically, but often rephrased in Japanese. Use with caution.
His opinions always aim for the center line.
In many figurative cases, Japanese prefers expressions like 中間 (ちゅうかん, middle ground) or 中庸 (ちゅうよう, moderation).
He always takes a middle-of-the-road stance.
中央線 is the standard term for road center lines and some sports. センターライン is a common loanword used in sports and casual road contexts. 中心線 is specifically for technical drawings and geometry. Using the wrong one can sound unnatural.
The center line on the road is fading.
Mark the center line on the design drawing.
The center line of the tennis court runs under the net.
Please assemble this part based on its center line.