national census

factual investigation

fact-finding

(historical) a mountain checkpoint west of Kyoto, bordering the ancient provinces of Yamashiro and Omi

Synonym of 関東 (Kantō): the area east of 逢坂の関 (Ōsaka-no-seki, “tollgate of Ōsaka-yama”) or the 函谷関 (Kankoku-kan, “Hangu Pass”)

the lock and key for a gate

to close and lock a gate

Shanhai Pass

a type of military boat used between the Warring States Period and the Edo Era

superpower (a sovereign state with dominant status on the globe and a very advanced military, especially the United States or formerly the Soviet Union)