A slot is a position in a series or sequence. A slot can also refer to a place in something, such as the interior opening of a mail box into which one inserts letters and postcards. A slot can also refer to an authorization granted for a planned aircraft operation. Such slots are used in the United States and other countries to manage air traffic at busy airports and prevent repeated delays caused by too many flights trying to take off or land at the same time.

A video slot is a type of gaming machine that uses reels to display symbols and allow players to win prizes when they match specific combinations of symbols. Many video slots offer multiple pay lines and bonus features. Some of these features include free spins, progressive jackpots and stacked wild symbols. Choosing the right video slot depends on your preferences and budget.

A slot is a dynamic placeholder that waits for content (passive) or calls out to get it (active). It can be filled by a scenario using an Add Items to Slot action or by a targeter. A slot must be mapped to a slot type, which determines how the bot will process the contents of the identified slot. The slot type can be set when creating the utterance or by editing the associated utterance template. It is not recommended to use more than one slot for a single scenario, since this could result in unpredictable results.