御お錠じょう口ぐち

noun

door separating inner and outer castle areas (Edo period)

A specific architectural term from the Edo period, referring to a door or gate that divided the inner citadel (honmaru) from the outer citadel (ninomaru) in Japanese castles. Not used in modern everyday language.

• 江え戸ど城じょうの御お錠じょう口ぐちは、本ほん丸まると二にの丸まるを隔へだてる重じゅう要ような門もんだった。

  The o-jōguchi of Edo Castle was an important gate separating the honmaru and ninomaru.