also: しぐう
noun
four corners
Refers to the four corners of a physical space, object, or area.
部屋の四隅に観葉植物を置いた。
I placed houseplants in the four corners of the room.
風水では、家の四隅にそれぞれ意味があるとされる。
In feng shui, each of the four ordinal directions of a house is said to have its own meaning.
四方 means 'all sides' or 'every direction' more broadly, while 四隅 specifically refers to the four corners or the four cardinal points.
Compound of 四 (four) and 隅 (corner). The reading よすみ uses the native Japanese reading for both characters, while しぐう is the Sino-Japanese on'yomi reading.