区間
くかん · kukan · JLPT N1 · noun
section
📏 区 = divide + 間 = interval: a space divided into parts, i.e. a section
区 means ward or to divide, and 間 means gap or interval. Together they name a stretch of line cut into separate parts, such as a section of a railway or road.
区 — enclosure 匚 + 品 (items)
Originally a pictograph of items (品) hidden inside a container (匚), meaning to store or conceal. The sense extended to a bounded space, then to an administrative district or area. As a surname read Ōu, it preserves the older 'hidden/enclosed' nuance.