What is the Chinese word for kid?

Answer 1

伢子 or simply 伢 in Chinese characters. Usually means "child".

However, the common word for "child" is 孩子 or 小孩

伢子 = ya zi

孩子 = hai zi

小孩 = xiao hai; rough translation is "little child"

This is all true only if you meant "child" in general and not "to kid" or "Kid" as a name.