The Chinese word "坠毁" is formed by combining two characters: "坠", which means "to fall" or "to plummet", and "毁", which means "to destroy" or "to ruin". Together, they create a compound word that conceptually sequences these actions, depicting an event where something falls and is subsequently destroyed, such as in an aircraft crash. This formation leverages the inherent meanings of each character to convey a specific, vivid outcome through their semantic union.