How is “hold in check” used?

In Downton Abbey: A New Era (2022), one line is: “He's opposed, I'm afraid, milady, and says he must stand watch and keep them in check.”

Which movie is “hold in check” from?

The clip at the top of this page is from Downton Abbey: A New Era (2022).

He's opposed, I'm afraid, milady, and says he must stand watch and keep them in check.

3 作品で登場 · 1 本目

to keep sth under control so that it does not spread or get worse

3 本の映画に登場

オックスフォード映画の 100%
to keep sth under control so that it does not spread or get worse
"I am finding it extremely difficult to hold it in check "and I am afraid I will lose control again
He always kept it in check. One thing that we did every once in a while which just seems so bizarre by now, but it's...

定義：Oxford Advanced Learner's Dictionary 第 9 版