A slot is a narrow opening, especially one in a door or other piece of furniture. People put mail through slots in doors, and they also send airplanes into the air by using slots at airports.
A “time slot” on a radio or television show is the time when the programme will be broadcast. A slot is also a narrow opening in something that is used to receive a token, such as a coin or a letter.
In slot games, a pay table is a list that shows the potential payouts from that machine based on the possible symbol combinations. It will often contain information about the symbols, including how many of each type you need to line up to win, and may be displayed as a table with different colours to make it easier to read. The tables can be found on the front of a traditional machine, or in the help menu of video slot machines.
Modern slot machines have microprocessors that can weight particular symbols and adjust their probability of appearing in a winning combination. These adjustments can affect how often the machine pays out.
Although most US slot machines aren’t labeled with their payout percentages, manufacturers sometimes publish this information. In addition, some gaming websites offer information about average payout percentages by game denomination in various casino and city locations. This information is useful, but it doesn’t always match up exactly with the actual payout percentages you’ll see at a given casino.