Usage patterns
太陽が西に沈むthe sun sets in the west
The sun sets in the west and rises in the east.
西の風a west wind
There's a strong west wind blowing today.
〈場所〉から西へ〈動詞〉to go/head west from a place
If you walk about ten minutes west from the station, you'll find a park.
西向きの〈物〉facing west (of a room, house, etc.)
A west-facing room gets sunlight until evening.
Expressions
西も東もわからないnot knowing one's way around; unfamiliar with an area · not knowing what to do; clueless