西側

1. Origins, structure, and basic meaning

• Structure: 西側 (にしがわ) is a location noun for the west side of a stated reference point.
• Basic usage: 駅の西側に locates something west of the station, while 建物の西側だけ singles out only the building's western side.

2. Common pitfalls and similar expressions

• The reference point for 西側
  • The west side is relative to a noun such as 駅 or 建物; adding だけ restricts the statement to that side alone.