expression, ichidan verb
settle for the time being; complete the first stage
Used when a matter is brought to a temporary conclusion or when the initial phase of something is finished, often implying that further work remains.
この問題は一段落つけたが、まだ完全には解決していない。
We've settled this matter for the time being, but it's not completely resolved yet.
とりあえず
Let's finish the first stage for now and take a break.