Gambling is a generic term for a whole range of games.
Any entertainment for money
Games of chance. Any entertainment where the result depends completely on the case. It does not on artificial intelligence devices or the skills of the players. For example, roulette, blackjack, baccarat, lottery, keno, roulette, sports betting, etc.
Renowned games. This group comprises games wherein the victory depends exclusively on the skills of the players. The most widespread variants of such games are intellectual quizzes, chess, and similar entertainments.
Commercial games. In such conversations, there is a balance between the luck and skill of the players. That is, the skills of the players and chance equally influence the result. For example, bridge, lotteries, sheep’s head, online slot machines for money.