What is a question about this article? If the question is unanswerable, say "unanswerable".

A charity is a nonprofit organisation that meets stricter criteria regarding its purpose and the method in which it makes decisions and reports its finances. For example, a charity is generally not allowed to pay its Trustees. In England and Wales, charities may be registered with the Charity Commission. In Scotland, the Office of the Scottish Charity Regulator serves the same function. Other organizations which are classified as nonprofit organizations elsewhere, such as trade unions, are subject to separate regulations, and are not regarded as "charities" in the technical sense.

What is the definition of a trade union?
unanswerable