A slit or other narrow opening, especially one for receiving something, such as a coin or a letter. Also, a position or assignment, such as a time slot on the schedule.

In a casino, a slot is a position where the player can place their wager and spin the reels to try to win. Winning is random and dependent on chance, but there are steps players can take to improve their chances of winning, like checking the pay table, understanding how the game works, and choosing a machine with low variance (i.e., fewer losses).

An area in front of the goal between the face-off circles on an ice hockey rink. Also: (Australian rules football, rugby union) To kick the ball between the posts for a goal.

In the 1980s, electronic slots made it possible to assign different probabilities to each symbol on each reel. Before that, the probability of a particular symbol appearing on the pay line was only about 1 in 22 or 1 in 10,648.

A position within a sequence or series, such as a time slot on a calendar or a day on the school schedule. In software, a space or position in which a piece of code is executed. You can use regular expressions to create custom slot types for your bot. For example, if you want your travel bot to recognize flight numbers, you can create a slot type with a regex pattern such as A-Z[0-9]2d3,4$.