Word of the Week: nabob (NĀ-bŏb) Definition (Noun) In extended use: a wealthy, influential, or powerful landowner or other person, especially one with an extravagantly luxurious lifestyle. In Context "Richard Croker retired after some years as Tammany leader in New York with $18,000,000 and is now living like a nabob on a beautiful estate just outside of Dublin, where he disgraces the United States flag by flying it night and day from his battlements." "Political Woodsawing," Los Angeles Times, November 22, 1905.