Wordnet polsko-angielski 
                         (a sudden happening that brings good fortune (as a sudden opportunity to make money)
"the demand for testing has created a boom for those unregulated laboratories where boxes of specimen jars are processed like an assembly line") 
boom, bonanza, gold rush, gravy, godsend, manna from heaven, windfall, bunce 
ECTACO słownik polsko-angielski Słowniki elektroniczne Ectaco do nabycia u wydawcy
                        GODSEND
Nowoczesny słownik polsko-angielski 
                        manna from heaven