Chàngshǐ is a formal, literary verb meaning 'to initiate' or 'to originate'—typically referring to the beginning of an action, movement, policy, or idea. The character 倡 (chàng) means 'to advocate' or 'to promote', while 始 (shǐ) means 'to begin' or 'to start'; together, they emphasize both the intentional promotion and the initial launching of something significant.

This word appears frequently in written Chinese—especially in news reports, official documents, academic writing, and historical narratives—but is rarely used in casual speech. It often collocates with abstract nouns like 改革 (reform), 运动 (movement), 政策 (policy), or 合作 (cooperation). Because of its elevated register, using chàngshǐ in everyday conversation (e.g., 'I initiated lunch') would sound unnatural or overly grandiose.