Shān shù (mountain villa) is a compound noun formed by combining 山 (shān), meaning 'mountain', and 墅 (shù), meaning 'villa' or 'country house'. Together, they refer specifically to a residential building—often elegant, quiet, and designed for leisure—situated in a mountainous or rural area. Unlike ordinary houses, a shān shù typically emphasizes harmony with nature, offering scenic views, fresh air, and seclusion.

This term carries a refined, somewhat literary or poetic connotation. It’s commonly used in travel writing, real estate descriptions, lifestyle magazines, and conversations about weekend getaways or retirement homes. While not everyday slang, it appears frequently in formal or descriptive contexts where the setting’s natural beauty and tranquility are central themes. It’s more evocative than functional—implying comfort, privacy, and cultural appreciation of landscape, rather than just shelter.