Slot is a versatile English word with multiple meanings:
1. In gaming: A slot machine is a casino gambling machine with spinning reels
2. In computing: A slot is an expansion point in a computer for adding hardware
3. In scheduling: A time slot refers to a specific period allocated for an activity
4. In linguistics: A slot is a position in a grammatical construction
5. In everyday usage: A slot can be a narrow opening for inserting something