A slot is a thin opening or groove in something. You can place letters and postcards through the mail slot at the post office.
In ice hockey, a forward in the attacking position is positioned in the “slot.” The defensive team takes up positions on the blue line to prevent the attacker from getting a breakaway. The slot also provides a clear path for the puck to pass from the center to the wings.
The slots in a casino are machines that spin reels and produce winning combinations of symbols and bonus features. They can be played for free or with a real cash wager. Some slots allow players to choose which paylines they want to bet on while others are fixed and cannot be changed. When choosing a machine, look for games that offer a higher percentage back over time. This is measured by a return-to-player (RTP) percentage and is an excellent way to judge how much a slot game might be worth playing.