機関
きかん · kikan · JLPT N3 · noun
organization
🚂🏛️ 機関 = machine + gate/link: the engine of a train or of an institution
機 means machine or mechanism, as in 飛行機 (airplane). 関 means barrier or connection, as in 関係 (relation). Linked machinery is an engine. Linked offices are an organization, so 金融機関 means financial institution.