The character 之 has many meanings. It can mean to go. It can also mean this, that, these, or those. It can also mean the particle of. Here is the stroke order animation and pronunciation. Here are the steps for writing the character. Here is the evolution of 之.
之中 – among
之後 – later, after
之類 – and so on, and so forth
For more Chinese characters, check out my other blog “來學正體中文字 | Learning Traditional Chinese Characters”.