長官
ちょうかん · choukan · JLPT N1 · noun
head
🏛️ 長 (head, leader) + 官 (official) = the head official in charge of an office
The first character 長 means head or leader, and the second, 官, means official or government post. Together they name the senior official who leads a government office.
官 — roof 宀 + mound/many 㠯
Originally a pictograph showing a building (roof 宀) over stacked mounds or seats (㠯), depicting an official residence or government office. The meaning extended from the building itself to the officials who worked there, and then broadly to 'official' or 'government.'