godsend
1. [ noun ] a sudden happening that brings good fortune (as a sudden opportunity to make money)
Synonyms: bonanza goldmine manna_from_heaven bunce gold_rush gravy windfall boom
Examples:

"the demand for testing has created a boom for those unregulated laboratories where boxes of specimen jars are processed like an assembly line"

Related terms: happening
2. [ noun ] (business) a sudden unexpected piece of good fortune
Synonyms: gravy windfall bunce
Related terms: bonus
Similar spelling:   godson
  good_sense
  Goodson