There are a variety of synonyms for the term "window covering" that can be used to convey a similar meaning. Some options include:
1. Window treatment - This term encompasses any type of covering used to enhance the aesthetic or functional qualities of a window.
2. Window shade - This typically refers to a fabric or material that can be pulled down or rolled up to cover a window for privacy or to block light.
3. Window blind - Similar to a shade, but often made of slats or vanes that can be tilted to adjust the amount of light entering a room.
4. Drapery - This term usually refers to decorative fabric hung over a window, often with a rod or other hardware.
5. Curtain - Like drapery, curtains are made of fabric and can be used for both decorative and functional purposes.