"gaming" in the noun sense
1. gambling, gaming, play
the act of playing for stakes in the hope of winning (including the payment of a price for a chance to win a prize
"his gambling cost him a fortune"
"there was heavy play at the blackjack table"
"gaming" in the verb sense
1. bet on, back, gage, stake, game, punt
place a bet on
"Which horse are you backing?"
"I'm betting on the new horse"
Source: WordNet® (An amazing lexical database of English)
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