Yap.Town

のを待つ

wait for … to happen

→ の
phrase Common #5,101
wait for … to happen の turns the preceding action or event into something you can wait for; を marks it as the object of 待つ.
JA: 列車が来るのを待つ。
EN: I’ll wait for the train to come.

でも、私はヤヌシュにあなたに電話するのを待つようにと。

But I told Janusz to wait before calling you.

— 教皇選挙 (2024)

戻って来るのを待つ

Wait for them to come back.

— 惑星ソラリス (1972)

彼は、電話がなるのを待つ。

He waits for the phone to ring.