noun, verb, slot⋅ted, slot⋅ting.| 1. | a narrow, elongated depression, groove, notch, slit, or aperture, esp. a narrow opening for receiving or admitting something, as a coin or a letter. |
| 2. | a place or position, as in a sequence or series: The program received a new time slot on the broadcasting schedule. |
| 3. | Linguistics. (esp. in tagmemics) a position having a specific grammatical function within a construction into which any one of a set of morphemes or morpheme sequences can be fit. Compare filler (def. 9). |
| 4. | an assignment or job opening; position: I applied for the slot in management training. |
| 5. | Journalism.
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| 6. | an allocated, scheduled time and place for an aircraft to take off or land, as authorized by an airport or air-traffic authority: 40 more slots for the new airline at U.S. airports. |
| 7. | Informal. slot machine (def. 1). |
| 8. | Aeronautics. See under slat 1 (def. 2). |
| 9. | Ornithology. a narrow notch or other similar opening between the tips of the primaries of certain birds, which during flight helps to maintain a smooth flow of air over the wings. |
| 10. | Ice Hockey. an unmarked area near the front of an opponent's goal that affords a vantage for an attacking player. |
| 11. | Computers. expansion slot. |
| 12. | to provide with a slot or slots; make a slot in. |
| 13. | to place or fit into a slot: We've slotted his appointment for four o'clock. |
| 14. | to fit or be placed in a slot. |
