The word 伴舞 is formed by combining the character 伴, which means "to accompany" or "partner", with the character 舞, which means "dance". Together, they create a compound word where 舞 acts as the primary action, and 伴 specifies the supportive role, resulting in the meaning "to accompany in dance" or "dance partner", typically referring to one who dances alongside another in a performance or social context.