A slot is an opening in a structure, especially an aircraft fuselage, through which air can flow. It is usually surrounded by a surface to prevent air from flowing into places where it should not be. A slot may also refer to:

In a casino, slot is a machine that accepts cash or paper tickets with barcodes and distributes credits based on a predetermined paytable. The machine can have three or more reels and multiple pay lines, and the goal is to line up matching symbols along these lines to win. Symbols vary by game, but classic examples include fruits, bells, and stylized lucky sevens. Many slot games have a theme, and the symbols and bonus features are aligned with that theme.

It is common for people to believe that certain slot machines are “hot” or “cold,” or that they are due to hit a jackpot. However, these theories are false and based on misconceptions of how slot machines work. The truth is that each spin of a slot machine is independent of all previous or future spins and the outcome is decided by random number generation. The only way to increase your chances of winning is to implement helpful strategies and never gamble more money than you can afford to lose.

For professional use, slot can be an effective tool for tracking and monitoring important deadlines. For example, financial consultants can use slot to organize and prioritize meetings with clients and colleagues. Similarly, companies can use slots to schedule team meetings, consultations with staff members and evaluation reviews with managers.