Main Entry: bo·nan·za

Pronunciation: \bə-ˈnan-zə\

Function: noun

Etymology: Spanish, literally, calm sea, from Medieval Latin bonacia, alteration of Latin malacia, from Greek malakia, literally, softness, from malakos soft

Date: 1829

1 : an exceptionally large and rich mineral deposit (as of an ore, precious metal, or petroleum)
2 a : something that is very valuable, profitable, or rewarding <a box-office bonanza> b : a very large amount <a bonanza of sympathy> c : extravaganza <channels planning all-day viewing bonanzas — William Borders>