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Washington Post Business Glossary
This glossary contains more than 1,250 business terms, organized and cross-referenced for your convenience. You can search the glossary for a particular word or search the full text of the glossary to find every reference to a word or phrase. Or, if you're a bit old-fashioned, you can browse the glossary at your leisure using the index. (The washingtonpost.com Business Glossary)
Dictionary of Financial Terms, Morgan Stanley
A comprehensive dictionary covering financial terms and definitions provided by Morgan Stanley.
BusinessDictionary.com features over 20,000 terms and over 115,000 links between related terms providing a clear and concise description of any and all business terms. (BusinessDictionary.com - About Us)
Business Dictionaries
A selection of seven specialized business dictionaries
The Penguin Dictionary of Economics
The Penguin Dictionary of Economics explains a host of economic terms, from acceleration principle to venture capital, Euro to X-efficiency, globalization to zero-sum game.