A plan, project, or scheme to carry something out; an undertaking or plot (can be neutral or imply a scheme).
新しい事業の企てには慎重な準備が必要だ。
Careful preparation is necessary for a new business venture.
彼らは町おこしの小さな企てから始めた。
They started with a small plan to revitalize the town.
その怪しい企てを誰にも知られないようにした。
They made sure no one found out about that suspicious scheme.