贵府 (guì fǔ) is a formal, respectful term meaning 'your esteemed household' or 'your honorable residence'. The character 贵 (guì) means 'honorable', 'esteemed', or 'valuable', and is commonly used in honorifics to show deference; 府 (fǔ) originally referred to an official residence or mansion, and by extension denotes a person’s home or family residence in polite speech. Together, 贵府 elevates the listener’s home with courtesy and humility—never used for one’s own household.

This term appears mainly in written communication (e.g., formal letters, invitations, business correspondence) or highly polite spoken contexts such as meeting elders, clients, or officials. It reflects traditional Chinese values of respect and hierarchy. While rare in casual conversation, it remains essential in formal registers where face (mianzi) and proper address matter greatly. Avoid using it with peers or in informal settings—it may sound stiff or ironically over-the-top.