Learn how to say Bonanzas correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word bonanza:
a situation which creates a sudden increase in wealth, good fortune, or profits:
a natural gas bonanza for Britain
a bonanza year for the computer industry
a large amount of something desirable:
the festive feature-film bonanza
early 19th century (originally US, especially with reference to success when mining): from Spanish, literally ‘fair weather, prosperity’, from Latin bonus ‘good’