This is the 6721st most frequent Chinese word.
概
"概" means "general" or "approximate."
Here, '概' is used as part of '大概', which means general or approximate, indicating an overall summary or estimation.
这个方案的大概是如此。
The general outline of this plan is like this.
In this sentence, '概' is used in '概念', meaning concept, referring to the understanding or idea of something.
他对这项工作的概念非常模糊。
His concept about this work is very vague.
Here, '概' appears in '概括', which means to summarize or generalize, emphasizing the act of summarizing key points.