Limits, or a limit, are the boundaries on how much a player may bet. The meaning shifts with the game. At casino tables, the table limit sets the smallest and largest stake for each bet, and on slots the game software caps the stake per spin.
In poker, limit describes the betting structure. In fixed-limit games, every bet and raise comes in a set amount. That stops a high roller or whale from using a huge bankroll to force others to fold hand after hand, which would ruin the game for everyone. In sports betting, limits are the maximum stakes a bookmaker accepts per selection or market, and they vary by sport, competition and bet type.
For operators, limits are a risk-management tool. They control liability, separate player segments, and must respect any maximum stakes set by the regulator.