A narrow opening or groove into which something can be inserted, such as a coin. Also, the position in a group or series of positions, such as one’s job, that can be filled by someone.

A slot machine is a type of gambling machine that uses revolving mechanical reels to display and determine results. Its symbols may match those on a pay table or they may have special icons such as wild cards that substitute for other symbols to create winning combinations. It is common to find a jackpot on a slot machine and it is important to know the payout rules before playing.

To win a slot, players must line up the symbols listed on the pay table in the same row as a winning combination. This can be done by pressing the spin button or using a lever. The reels then stop spinning and the player receives a payout if they have successfully lined up the symbols. The reels may also trigger a bonus mode where the player is entertained with exciting scenes on the LCD screen and energizing music is played.

Air traffic management slots are a way to allocate air space for planes when an airport is constrained in capacity. The use of these slots has resulted in major savings to airlines in terms of time and fuel consumption. It is also a much safer way to operate an airline as it allows for the flow of aircraft to be managed and prevents unnecessary delays.