noun, noun or participle which takes 'suru'
east-facing; east side; the east
Refers to the direction or side that faces east, often used for buildings, rooms, or slopes. Can also be used as a suru-verb meaning 'to face east'.
この部屋は東面なので朝日がよく入る。
This room faces east, so it gets plenty of morning sun.
東面
The east-facing slope loses its snow early.