笠木
か
さ
ぎ
Meanings
1
coping; top rail
In architecture, the protective cap or top rail on a wall, fence, or balustrade.
The coping on the wall has deteriorated, so it needs to be replaced.
2
top part of the upper cross-beam of a torii
Specifically the uppermost horizontal beam of a Shinto torii gate.
The top beam of a torii often has a curve.