Gambling is the activity or practice of betting money, or engaging in a game of chance, in the hope of winning additional money. It involves risking something of value on an event with uncertain outcomes, such as playing cards, dice, roulette wheels, or slot machines. The term can also refer to other activities that involve similar risks, such as investment schemes or business deals. Gambling has been a popular pastime for centuries and is legal in many countries around the world, but it can also be addictive and have negative consequences for individuals and society.