Chou Collection, Lower Volume Radical: Big (dà) Page 249, Entry 10 Pronounced tao. Shuowen Jiezi (Explanation of Simple and Compound Characters) states: To advance or press forward. Composed of the radical for ten, implying the inclusion of others. Xu Shen states: It carries the meaning of being large and encompassing, as well as the appearance of coming and going. Also written in a variant form (feng). It is distinct from the character for root (ben).