A narrow notch, groove or opening, such as a keyway in a piece of machinery, a slit for a coin in a vending machine, etc.: He dropped the coin in the slot. (From the American Heritage® Dictionary of the English Language, 4th Edition.)
A position in a group, series or sequence. Also called a berth, billet, job, jig, slot, spot, window, or position. Used as a verb, with the sense of “to place in a slot”: He slotted the filter into the empty filter compartment.
In the context of airport coordination, a slot is an authorization to take off or land at a particular time during a specified day at a busy airport, in order to prevent repeated delays caused by too many flights trying to take off or land at the same time. The system is widely used in the United States and elsewhere.
Online slots are a popular way to gamble, but it’s important to remember that gambling is a risky activity and that you should only play with money that you can afford to lose. If you find yourself getting frustrated with a game or betting more than you can afford to lose, it may be time to stop playing for a while and try again later. For more information about responsible gambling, please visit our dedicated page.