念を押して

remind firmly

→ 念
phrase Rare #39,547
remind firmly Used when reminding someone to make sure something is done or not forgotten. This is the て-form of 念を押す and connects to what follows.
JA: 忘れ物がないように、出発前に念を押しておいた。
EN: I reminded them to make sure they hadn’t forgotten anything before leaving.

彼への投資が良いとも悪いとも、決して言わないよう念を押しておいたわ。

I made sure to tell her never to say whether investing in him was a good idea or a bad one.

ヴィクターにもみんなに念を押してもらった。

I also had Victor remind everyone to make sure.