opening outward (door/window)
Describes a door or window that swings or slides outward. Often contrasted with 内開き (inward-opening).
この窓は外開きなので、外に物を置かないでください。
This window opens outward, so please don't place anything outside.
The emergency exit door opens outward.
Compound of 外 (そと, outside) and 開き (びらき, opening, from 開く).