noun, verb, slat⋅ed, slat⋅ing.| 1. | a fine-grained rock formed by the metamorphosis of clay, shale, etc., that tends to split along parallel cleavage planes, usually at an angle to the planes of stratification. |
| 2. | a thin piece or plate of this rock or a similar material, used esp. for roofing or as a writing surface. |
| 3. | a dull, dark bluish gray. |
| 4. | a list of candidates, officers, etc., to be considered for nomination, appointment, election, or the like. |
| 5. | to cover with or as with slate. |
| 6. | to write or set down for nomination or appointment: the district leader slated for city judge. |
| 7. | to plan or designate (something) for a particular place and time; schedule: The premiere was slated for January. |
| 8. | to censure or criticize harshly or violently; scold. |
| 9. | to punish severely. |
| 10. | clean slate, an unsullied record; a record marked by creditable conduct: to start over with a clean slate. |