WordWeb Online

1. An especially rich vein of precious ore
    
2. A sudden happening that brings good fortune (as a sudden opportunity to make money)
   "the demand for testing has created a bonanza for those unregulated laboratories where boxes of specimen jars are processed like an assembly line"
   - boom, gold rush, gravy, godsend, manna from heaven, windfall, bunce [Brit]

Derived forms: bonanzas

Type of: happening, mineral vein, natural event, occurrence, occurrent, vein

Encyclopedia: Bonanza, Colorado Bonanza, GA Bonanza, Georgia Bonanza, CO Bonanza Bonanza, AR Bonanza, Arkansas Bonanza, ID Bonanza, Region Autonoma del Atlantico Norte Bonanza, Región Autónoma del Atlántico Norte Bonanza, Utah Bonanza, Oregon Bonanza, Idaho Bonanza, OR Bonanza, Or