‘杰作’ (jié zuò) literally combines ‘杰’ (jié), meaning ‘outstanding, heroic, or extraordinary’, and ‘作’ (zuò), meaning ‘work, creation, or piece’. Together, they form a formal noun meaning ‘masterpiece’ — a work of exceptional quality, originality, or influence, especially in literature, art, music, or film. It implies high artistic merit and enduring significance, not just popularity or commercial success.

This term is commonly used to describe celebrated works by renowned creators — for example, a Nobel Prize-winning novel, a groundbreaking symphony, or a landmark painting. It carries respectful, even reverent connotation, and appears frequently in literary criticism, art reviews, academic writing, and cultural commentary. While it can technically apply to any field (e.g., a brilliant scientific paper), its strongest usage is in the arts and humanities.