The word 樊笼 is formed by combining the character 樊, which itself is composed of 林 (woods) and 爻 (crossed sticks) to depict a fence or barrier made from interwoven branches, with the character 笼, composed of 竹 (bamboo) indicating material and 龙 providing phonetic approximation, meaning a cage or basket. Together, these characters semantically reinforce each other to denote a cage or enclosed structure, emphasizing confinement.