1. The name of a governor in India under the Mogul Empire.
2. A person of wealth, influence, and prominence; especially, someone who has made his fortune in the Orient: "Most people have not been sorry that some of the nabobs of Wall Street have suffered financial losses during these economic times."

"Nabob has come to mean a person who has an idle, profligate, or extravagant way of life and who gets whatever he wants because he is disgustingly wealthy."