a linen, handpainted piece of fabric that hangs in windows and doorways
a simple, split curtain fashioned from cloth, originally hung at the main entrance of a residence
a type of Japanese curtain/sign which is hung in the doorways of many shops etc
Curtains hanging in front of a shop's entrance, indicating that it's open for business - they're usually navy blue with white markings. (Not to be confused with the paper-thin sheets of dried seaweed called nori.)
Noren (æš–ç°¾) are traditional Japanese fabric dividers, hung between rooms, on walls, in doorways, or in windows. They usually have one ore more vertical slits cut from the bottom to nearly the top of the fabric, allowing for easier passage or viewing. Noren are rectangular come in many different materials, sizes, colors, and patterns.