bonanza

noun

bo·​nan·​za bə-ˈnan-zə 

1

mining : 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

Examples of bonanza in a Sentence

Recent Examples on the Web

South Africa is thought to have a coastal undersea freshwater bonanza, too, and there is at least anecdotal evidence that every continent may have the same. —Rodrique Ngowi, Fortune, 7 Sep. 2025

The discount bonanza was held over four days this year from July 8 to July 11. —Annie Palmer, CNBC, 2 Sep. 2025

Now, the One Big Beautiful Bill has made this tax bonanza even bigger and better. —Robert W. Wood, Forbes.com, 25 Aug. 2025

Whatever Putin is paying or bartering, the Ukraine war has been a bonanza for the Kim regime. —Gordon G. Chang, MSNBC Newsweek, 20 Aug. 2025

Word History

Etymology

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

First Known Use

1825, in the meaning defined at sense 1

Rhymes for bonanza

• extravaganza
• stanza

Kids Definition

bonanza

noun

bo·​nan·​za bə-ˈnan-zə 

1

: a large and rich mineral deposit

2

: something that brings a rich return