This is the 7492nd most frequent Chinese word.
計
"計" means "to calculate," "to plan," or "a plan/strategy."
In this sentence, '計' is used as part of the word '計劃' which means 'plan'. It conveys the idea of planning or devising.
這個計劃非常詳細。
This plan is very detailed.
Here, '計' is part of the word '計算', meaning 'to calculate'. It indicates the act of counting or calculating numerically.
他計算了所有的成本。
He calculated all the costs.
In this case, '計' represents a 'plan' or 'scheme', showing its standalone usage to indicate an idea or course of action.