WordWeb Online

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

Derived forms: windfalls

Type of: edible fruit, happening, natural event, occurrence, occurrent

Encyclopedia: Windfall Windfall, Indiana