This is the 694th most frequent Chinese word.
差
"差" means "difference," "discrepancy," "poor," or "inferior," depending on context.
In this sentence, '差' means 'bad' or 'poor' to describe someone's performance or state.
我今天的表现很差。
My performance today was very poor.
Here, '差别' means 'difference' or 'disparity', showing '差' as part of a compound word that denotes variation.
这两件衣服的差别很明显。
The difference between these two pieces of clothing is very obvious.
In this example, '差一点' means 'slightly off' or 'close but not exact', reflecting a minor quantitative difference.