The word "天府" is formed by combining the character "天" (tiān), meaning "heaven" or "sky", with "府" (fǔ), meaning "repository", "prefecture", or "mansion". This creates a literal compound meaning "heavenly repository", where "天" acts as a modifier attributing a divine or exalted quality to "府", specifically denoting a place of exceptional natural abundance or prosperity, as historically used in references like "天府之国" for the Sichuan Basin.