A narrow opening, groove, notch, or slit, especially one in which something may be inserted, such as a coin slot in a machine. Also:

In airport coordination, a time interval during which an aircraft is authorized to take off or land at a specific airfield during a specified day. Slots are used to manage air traffic at extremely busy airports and to prevent repeated delays caused by too many flights trying to take off or land simultaneously.

Online slots come in a variety of styles, each with its own paylines, symbols, and special features like wilds, scatters, and bonus rounds. Understanding how these elements affect your gameplay can help you select the best game for your style and risk tolerance. You should also consider a slot’s RTP and volatility, which dictate how often it pays out and how large its payouts can be.

To put or fit into a slot: She slotted the CD into the player. The car seat belt slotted easily into place.

You can create custom slot types that identify values in an utterance and map them to particular actions in your bot. For example, you can set up a custom slot type that matches the name of a city to trigger an action for each instance of that name in an utterance. To create a custom slot type, click Add Slot Type in the left pane. In the Slot Types dialog, choose Regular Expression as the Slot Type and then type a regex pattern. You can also enable synonyms for a slot type, so that Dialog Engine understands multiple words and phrases for the same entity value.