The word "宣告" is a compound formed by combining two semantically related characters: "宣" (xuān), which means to declare, announce, or proclaim, and "告" (gào), which means to tell, inform, or notify. In Chinese morphology, this is a type of coordinative compound, where both components contribute similar and reinforcing meanings. Together, they create a stronger, more formal sense of making an official or public declaration, with the combined term meaning "to proclaim" or "to declare".