A source of substantial wealth or financial support:
The definition of baron is the name of a low rank of nobility which comes below the grade of count or viscount or is a wealthy businessman who is a leader in his particular industry.
(Slang) A person regarded as important or influential
A powerful or influential person, especially in business or industry:
A title applied by foreigners to the former shogun of Japan
Find another word for fat-cat. In this page you can discover 20 synonyms, antonyms, idiomatic expressions, and related words for fat-cat, like: money-grab, moneybags, Rephlex, bosses, deep pocket, moneyed person, baron, big shot, magnate, person of means and person of substance.