What is a Slot?

A narrow opening for receiving or admitting something, such as a coin or a letter. Also known as a slit, notch, fench, or vent. A place or position, especially in a series or sequence: His program got the eight o’clock slot on Thursdays.

In programming, a way for a bot to find information available in an utterance:

You can map an identified slot to a custom slot type, which helps the bot understand what information is available in that particular spot. For example, if you have an utterance that contains a list of flight codes, you can map this slot to a regex pattern, [A-Z]2d34$, which tells the bot that it should match any phrases that contain the characters in this string.

In casinos, the slot is an area where the machine is located:

One of the most popular superstitions or ideologies associated with slots is that a machine is “due” to hit. This is usually believed because it has been a long time since the last win, or because the machine paid out generously in the past. In reality, however, every spin is random. Following this kind of superstition is a surefire way to lose money at the slots. Instead, you should always have a money management system in place and play within your budget. If you are going to gamble, be sure to cash out as often as possible. This way, you’ll only spend what you can afford to lose and will be able to walk away with the winnings.