The area beside a window; the spot next to a window (e.g., where one sits or places things).
毎朝、窓辺でコーヒーを飲みながら新聞を読む。
Every morning I read the newspaper while drinking coffee by the window.
子どもが窓辺に座って外を見ている。
A child is sitting by the window looking outside.
寒いので、窓辺に観葉植物を置かないようにした。
Because it's cold, I decided not to place houseplants by the window.