bonanza
noun
[ bəˈnanzə ]
• a situation which creates a sudden increase in wealth, good fortune, or profits.
• "a natural gas bonanza for Britain"
Similar:
windfall,
godsend,
stroke/run of luck,
boon,
bonus,
blessing,
benefit,
advantage,
pennies from heaven,
manna from heaven,
jackpot,
benison,
Origin:
early 19th century (originally US, especially with reference to success when mining): from Spanish, literally ‘fair weather, prosperity’, from Latin bonus ‘good’.