This is the 8729th most frequent Japanese word.
暫定
"暫定" means "provisional" or "temporary."
In this sentence, "暫定案" (provisional proposal) uses 暫定 to indicate that the proposal is not final and is subject to changes.
この計画は暫定案として承認されました。
This plan has been approved as a provisional proposal.
Here, "暫定的なスケジュール" (tentative schedule) uses 暫定 to signify that the schedule is temporary and can be adjusted later.
暫定的なスケジュールを立ててみましょう。
Let's create a tentative schedule.
The term "暫定の措置" (provisional measure) employs 暫定 to indicate a temporary solution implemented until a permanent one is devised.