1. grass and wood used for burning fire: Chai grass, Chai fire, Chaimen, tinder, firewood, etc.

2. burning firewood to offer to heaven: "Chai in God".

3. thin, not fluffy: firewood chicken, firewood heart.

4. surname.

5. dialect, meaning reed.

Chai, pronounced chái in Chinese, generally refers to firewood, small loose wood, family name, etc. It is also known as "Zhai". It is also known as Zhai (寨), pronounced zhài (zhài), meaning a defensive fence.

In the Taizhou dialect, "Chai" is pronounced as sa in the fourth tone, "Chai Tun Fu", which means "owe a beating".