A "complete bet" in roulette refers to a combination of multiple bets placed together to cover a specific section of the roulette wheel or a set of numbers. This often includes several inside and outside bets that cover a variety of potential outcomes. For example, a player might place a complete bet on a section of the wheel, such as "Voisins du Zero," which includes a combination of straight-up, split, and corner bets that cover numbers near zero. This type of bet is designed to increase the chances of winning by covering multiple possibilities within a defined area of the roulette wheel.