sidepost

Noun

A vertical supporting post beside a door, gate, etc.

Japanese Meaning

扉や門の横に設置された垂直な支持柱

The carpenter reinforced the sidepost to ensure the gate would close securely.

大工は門がしっかり閉まるように、脇柱を補強した。

Sense（1）

A vertical supporting post beside a door, gate, etc.

They shall take of the blood, and strike it on the two side posts.

sideposts

（ plural ）