The Chinese word 替身 (tìshēn) is a compound noun formed by combining two meaningful characters: 替 (tì), meaning "to substitute" or "to replace", and 身 (shēn), meaning "body" or "person". Literally, it translates to "substitute body" or "replacement person". This formation follows a common grammatical structure in Mandarin where two characters with related meanings are joined to create a new, specific concept, in this case, a person who takes the place of another, such as a stunt double in film, a bodyguard, or a metaphorical stand-in.