差距
chājù · HSK 5
spatial difference
📏 差 (differ) + 距 (distance) = a gap or disparity
差 means 'differ/lacking' and 距 means 'distance/gap'. Together 差距 is the measurable distance between two things — a gap, disparity, or shortfall, often used for skill, income, or score differences.
差 — 垂 (drooping) + 工 (work/tool)
Originally depicted a hand reaching down to grasp grain stalks of uneven length, suggesting discrepancy or unevenness. From this came the meaning 'difference' or 'to differ.' The reading chā specifically carries the sense of disparity, while other readings developed meanings like 'to dispatch' (chāi) and 'poor/lacking' (chà).
距 — foot radical 足 + 巨 (jù, large/ruler)
距 combines the foot radical 足 with 巨, which provides the sound. Originally it referred to the spur on a rooster's leg, then extended to mean 'distance' or 'to be apart from'—the gap measured between two points, like strides of the foot.