The Chinese word **地平线** (dìpíngxiàn), meaning "horizon," is a logical and visually descriptive compound formed by combining three characters: **地** (dì, earth/ground), **平** (píng, flat/level), and **线** (xiàn, line). It literally translates to "earth-flat-line," which directly captures the perceptual phenomenon of the apparent line that separates the sky from the earth's surface, especially when observed over a level landscape like an ocean or plain. This formation exemplifies a common method in Chinese word creation, where concrete concepts are combined to describe an abstract or observed natural feature.