暑假 (shǔ jià) literally means 'heat vacation' — 暑 (shǔ) refers to intense summer heat, and 假 (jià) means 'holiday' or 'vacation'. Together, they form the standard term for the extended break from school or work that occurs during the hottest months of the year, typically from mid-July to late August in China. It’s a culturally significant period associated with rest, travel, family time, and summer activities like swimming or summer camps.

This word is used almost exclusively in educational and institutional contexts — students and teachers commonly refer to their break as 暑假, while adults may use it when discussing time off aligned with school schedules. Unlike generic terms for 'vacation' (e.g., 假期), 暑假 specifically denotes the summer break and carries no ambiguity: it never refers to holidays in other seasons or personal days off.