noun
waypoint; checkpoint
A point one passes through on a route, often used in navigation or as a metaphor for a milestone on the way to a larger goal.
カーナビに通過点を設定する。
Set a waypoint on the car navigation system.
このプロジェクトは最終目標への通過点に過ぎない。
This project is merely a checkpoint on the way to the final goal.
チェックポイント is a direct loanword for 'checkpoint', often used in races, games, or security contexts. 通過点 is a native compound with a broader, more abstract range.
Compound of 通過 (passing through) + 点 (point).