The Reuters Financial Glossary is a useful tool when sorting through terms used in the financial world. It’s also a community-driven project:
The Reuters Financial Glossary has been developed to give you quick and easy access to definitions of terms and concepts related to the financial markets. It is a community-created collaborative project, based upon a published book written and edited by Reuters Editorial staff. Now anyone can edit, build upon and add entries to the glossary to create a helpful source of information.