A more thorough explanation:

A chamber of commerce is a group of business leaders and merchants who come together to promote the commercial interests of a particular area. They are usually affiliated with a national organization of the same name.

For example, the New York City Chamber of Commerce is an organization that represents the interests of businesses in New York City. They work to promote economic growth, provide networking opportunities for members, and advocate for policies that benefit businesses in the city.

Chambers of commerce can be found in many cities and towns around the world. They are important because they help to create a strong business community and promote economic development in their area.