The pinyin of oak is: xiàng

Original meaning: "oak". That is, "oak (?lì) tree". Referred to as "oak". For example: "acorn" (the fruit of the oak tree).

Extension: extended to refer to "rubber tree". It is an evergreen tree with slender branches, three oval leaflets forming compound leaves, white flowers, and spherical capsules. Referred to as "oak". Such as: "rubber".

Extension: also used as a surname.

Kangxi Dictionary: "Tang Yun", Xu Liangqie's "Ji Yun", "Yun Hui" and "Zheng Yun" are like Liang Qie,? Sound-like. "Jade Chapter" is also true. "Boya" soft also. The pedicle has a bucket and can be dyed with soap. "Zhou Li·Zhangran Note" calls it Xiangdou, which is actually edible. "Liezi·Shuofu Pian" states that water chestnuts are eaten in summer and oak chestnuts are eaten in winter. "Book of Jin·Biography of Yu Gun" and the people of the city went into the mountains to pick up oak trees.

There are two kinds of oaks: one is not fruitful, and the other is fruitful. Its name is xu, but it is actually oak. ——"Compendium of Materia Medica" Oak xiàng

⒈, [Oak] The general name for oak, medlar, dope and other trees.

⒉. [Rubber tree] An evergreen tree, native to Brazil and cultivated in southern my country decades ago. The latex contained in the trunk can be made into rubber for industrial use.

⒊, [Rubber grass] perennial herb. The root is cone-shaped, and the glue contained in the root can be used to make rubber.

⒋, [Rubber] Made from plant gum juice such as rubber trees or artificially synthesized gum. It has the characteristics of elasticity, insulation and impermeability, and has a wide range of uses.

⒌, [Eraser].