window side vs side in Korean
창가vs옆

창가window side
창가 means the place right by a window. You can use it for a spot in a room, a table near the window, or a seat on a bus or train. People often use it when talking about sitting, standing, or putting something near the window.
When to use window side
옆side
The word "side" means the place next to something, and in Korean this is often shown with (옆). You use it when you want to say that one person or thing is beside another person or thing. It is very common in everyday speech, especially for places in a home, school, or town.
When to use sideHow they differ
옆 means the side of something in a general way, like next to a person or object. 창가 is more specific: the side or area by a window.