光年
こうねん light-year
Why it means this
Not a unit of time but of distance — how far light (光) travels in one year (年).
Breakdown
Each character links to its full entry — origin story, stroke order, and readings.
こうねん light-year
Not a unit of time but of distance — how far light (光) travels in one year (年).
Each character links to its full entry — origin story, stroke order, and readings.