This is the 8942nd most frequent Japanese word.
気運
Momentum; the mood or trend leading toward a particular outcome.
In this sentence, '気運' is used to describe the collective momentum or spirit around a particular initiative.
気運が高まっているので、プロジェクトを始めるのに良い時期です。
The momentum is growing, so it is a good time to start the project.
In this usage, '気運' represents the diminishing enthusiasm or drive within a group or context.
気運低下により、計画を再検討する必要があります。
Due to the decline in momentum, it is necessary to reconsider the plan.
Here, '気運' is used to refer to the collective spirit or mood of the local community toward an event or idea.