This is the 228th most frequent Chinese word.
明
"明" means "bright," "clear," or "understand."
In this sentence, '明' is used in '明天', which means 'tomorrow', indicating time.
明天我们去公园散步。
Tomorrow we will go to the park for a walk.
Here, '明' is used as an adjective meaning 'clear or understandable'.
这件事情的意义很明。
The meaning of this matter is very clear.
In this sentence, '明' contributes to the meaning of 'bright' when combined in '明亮'.