fence, wall, (kokuji)
塀 centers on a barrier that encloses or divides space: a fence or wall. It is a kokuji created in Japan for this specific structural meaning.
塀 is a Japanese kokuji combining 土 (earth) with 屏 (barrier, screen) to express an earthen fence or wall. The character was created in Japan and does not have a Chinese origin.
The left side is earth 土, and the right side 屏 suggests a screen or barrier. Picture an earthen screen built up from the ground to form a fence or wall.
For ヘイ, imagine a fence made of hay bales: hay -> ヘイ, and the earth 土 holds the hay barrier 屏 in place.
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wall
concrete-block wall
brick wall
precast concrete fence
mud wall; earthen wall; plaster wall
place surrounded by walls; (within) prison
to fence in; to surround with a wall
over a wall; crossing a fence
wooden fence; board fence
stone wall
mud wall with a roof; roofed mud wall
mud and tile wall topped with tiles
fence made from disused ship planks
tall fence