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

That will be a scientific bonanza since full solar eclipses produce just a few minutes of totality when the moon lines up perfectly between Earth and the sun — on average just once every 18 months. —Marcia Dunn, Los Angeles Times, 16 June 2025

Cracking open the vaults to centuries-old tomes could be a data bonanza for tech companies battling lawsuits from living novelists, visual artists, and others whose creative works have been scooped up without their consent to train AI chatbots. —Matt O'Brien, Christian Science Monitor, 13 June 2025

Russia’s war against Ukraine has brought Mr. Kim a military bonanza. —Choe Sang-Hun, New York Times, 31 May 2025

The ad bonanza was on full display at Upfront presentations to advertisers in New York last week. —Jill Goldsmith, Deadline, 20 May 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