hush money 封口费；封嘴钱(用于防止某人透露令人尴尬或有损害的消息)

【例句】
He got a large sum of hush money.
他拿到了一大笔封口费。

I was told the manager has been paying her hush money every monthjust to keep her silent.
我听说，经理为了不让那清洁工说出去而每个月给她一笔钱，目的就是在于让她别做声。