Fort. An Ainu アイヌ term for a fortification surrounded by a stockade fence or palisade *…

Lit. cross-stitch layout. Also read chigirinawa. Also written 蟄亀利縄. A generic term for various types of castle…

An extremely low embankment *dote 土手, beside a castle moat *…

Also termed fujōnagashi 不浄流. A garbage drop. An area for discarding garbage and human and animal excrement from…

A passageway in a castle, used to clean out the moat. An opening in the wall of the main compound of a castle *…

Also termed chōrui 長塁, bōrui 防塁. A long defensive fortification consisting of a continuous, extended…

Lit. Korean type mountain castle. A general term for castle structures in Japan that resemble those in ancient Korea.…

Lit. "belt compound." A long narrow castle compound. Obiguruwa were often constructed on the top of an earthen…

Lit. "fan slope." Also ōgikōbai 扇勾配 or miyakōbai 宮勾配 (shrine slope). The concave pitch of a stone…

Also written 扇子の縄. A castle plan shaped like a folding fan wherein the fortifications are distributed on either side of the…

Lit. "hillcastle." Also termed kyūryō jōkaku 丘陵城郭.
1　A castle built on a hillock, oka…

A castle wall that is undulates with indentations and protrusions. It is designed to allow for the strategic placement of…

A loophole in a wall *oribei 折塀 that zigzags back and forth like a folding screen *…

Also written 追手.
The front of a castle or fortification. Contrast with karamete 搦手 (the rear of a castle…

The front gate of a castle. Derive from *ōte 大手, the front of a castle or…