This is the 2509th most frequent Japanese word.
占め
"占め" means "to occupy" or "to comprise."
The word '占める' is used here as a verb meaning 'to account for' or 'constitute.' It describes the proportion or percentage occupied by something.
この学校では女子生徒が全体の60%以上を占めています。
In this school, female students make up over 60% of the total.
'占める' here expresses the idea that something has a significant role or influence within a larger context.
成功は計画の実行力が大部分を占める。
Success predominantly depends on the ability to execute plans.
The usage of '占める' in this sentence indicates holding or defining a significant position or part in a certain aspect of life.