lottery
US /ˈlɑː.t̬ɚ.i/
UK /ˈlɑː.t̬ɚ.i/

1.
a means of raising money by selling numbered tickets and giving prizes to the holders of numbers drawn at random
:
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She won a large sum of money in the lottery.
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Many people buy lottery tickets hoping to get rich.
2.
a system in which something is allocated by lot
:
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Admission to the selective school is determined by a lottery.
•
The housing assignments were done by a fair lottery system.