A slit, hole, or aperture. Used to admit air or liquid. Examples include: a window, slot in the wall, a doorknob hole, and the eye of a needle. A figurative sense of “a time or place for something to happen” is also attested, as in “She slotted her new phone into the cradle” and “Visitors can book time slots a week or more in advance.” From Middle English slott, from Old Norse slta, from https://www.pushkarlele.com/ Proto-Germanic *slutila (source also of Dutch sluiten, German schloss), from PIE root *slut- (see bolt).
In most online slot games, there will be a clear and concise list explaining how each symbol works, alongside the payout values for landing 3+ matching symbols on a pay line. This will also include if the slot has any bonus features and how these can be activated. Typically these will include things such as Free Spins, Wilds, Scatter symbols, and Mystery Pick style games.
A slot is a dynamic placeholder that either waits for content (passive slot) or calls out for it (active slot). A slot can be filled with a combination of scenarios and renderers. However, it’s best to only use one scenario for a given slot if possible as using multiple could lead to unpredictable results. It’s also important to understand the properties of a slot when using it with offer management.