A 'mén lián' is a hanging curtain placed over a doorway, typically used to block drafts, provide privacy, or add decoration. The first character, 门 (mén), means 'door', and the second, 帘 (lián), means 'curtain' or 'drape' — together they literally mean 'door curtain'. Unlike modern sliding doors or glass partitions, 门帘 are usually made of fabric, bamboo, beads, or plastic strips and hang freely from a rod or frame above the entrance.

This word is commonly used in everyday contexts involving traditional or informal indoor spaces — such as rural homes, small shops, kitchens, or temple entrances — where full doors aren’t practical or desired. It carries a slightly rustic or homely connotation and is rarely used for high-tech or formal architecture. While functional, 门帘 also often reflects regional style or seasonal use (e.g., heavy cloth in winter, light bamboo in summer).