This is the 9801st most frequent Japanese word.
裏金
"裏金" (uragane) refers to illicit funds, secret money, or under-the-table payments.
In this sentence, "裏金" is used to mean an unlawful payment or bribe.
彼は裏金を受け取ってしまった。
He ended up accepting a bribe.
Here, "裏金" refers to undisclosed or illicit funds utilized by an organization.
その組織は裏金を使って権力を手に入れた。
That organization used illicit funds to acquire power.
In this context, "裏金" denotes hidden or unofficial money leading to the company's reputational decline.