Yi, pronounced as yì, originally means big, "Shuowen" - Yi, big; accumulation, repetition; bright, such as Yi Yi; a certain emotion is enhanced, such as radiant; beautiful.

Yitongyi also means playing chess.

When used in naming, the meaning of the word Yi is outstanding appearance, upright and bright, lively and cheerful.

The literal meaning of Cheng is the unit length, which is one hundredth of an inch. It also refers to courses and equations; by extension, it means measurement, progress, French formula and other meanings.

When used as a person's name, it means having a bright future, being quick and eager to learn, and conscientious in one's work.