bonanza

English Thesaurus

1. a sudden happening that brings good fortune (as a sudden opportunity to make money) (noun.event)

hypernym	:	happening, natural event, occurrence, occurrent,
definition	:	an event that happens (noun.event)

2. an especially rich vein of precious ore (noun.object)

hypernym	:	mineral vein, vein,
definition	:	a layer of ore between layers of rock (noun.object)