How do you use bonanza meaning a rich source in a sentence?
They found a bonanza of gold
Bonanza is a noun for a rich mass of ore in mining; great or sudden wealth or luck; a windfall. Example use: I got a bonanza for cleaning my closet when I found thirty dollars in an old purse. He let a 10,000 dollar lottery bonanza slip through his fingers at the casinos. Bonanza was a TV show produced from 1959 - 1973.