We believe this to be the most complete glossary of payment industry terminology available anywhere. Candidly, we looked everywhere, and could not find anything that was complete AND user-friendly, so… we’ve written our own. You’ll also find these terms cross-linked throughout our site. Did we miss anything? We tried not to! But if you find a term we should add, contact us and we’ll add it!

Click on any term to see the definition. Hover over a term to see the short version. Looking for something specific? Click the first letter to narrow your search.