plural bonanzas
1
: something that produces very good results for someone or something
—usually singular
The movie turned out to be a box-office bonanza. [=the movie made a great deal of money]
The program has been a ratings bonanza for the network. [=the program has received very high ratings]
The discovery proved to be a bonanza for scientists.
2
: a large amount of something valuable
—usually singular
Her research resulted in a bonanza of information.
Cite this Entry
“Bonanza.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/bonanza. Accessed 21 Jun. 2026.
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