The five elements of Zi are of metal nature. In naming mathematics, the character "zi" cannot be used as a surname, but it can be used as a first name. In ancient China, the word "zi" was often used overlappingly to describe tireless pursuit of something. Not many people use this word. If any parents are willing to use it.
Meaning 1. Describing hard work and tireless pursuit
Corresponding to the word Zi, applicable names are: Zixuan, Zilei, Zijin, Ziming, Ziyun, Zike, Ziyuan, Zixu, Zixin, Zilun, Ziyi, Zidi, Zihan, Zishan, Zicheng
Meaning 2. Describe happiness, joy and beauty
Corresponding to the word Zi, the applicable names are: Zishu, Zimei, Ziqi, Ziyun, Ziqiu, Zijie, Zixue, Zilan, Zixin, Ziling, Ziling, Ziya, Ziman, Ziyan, Zili.