slate usually passive
(to arrange or schedule)
- The meeting is slated for Monday afternoon.
- The project is slated for completion next month.
(a dark grey rock that splits easily into flat thin layers)
- They covered the roof with slates.
slat
(a thin flat piece of wood or plastic used to make floors, furniture, window, etc.)
- She was sitting on a slat bench near a willow tree.
- This bed has some broken slats.