| Answer | Crossword Clue |
|---|---|
| copestone | A flat stone forming part of a coping |
| copestones | A flat stone forming part of a coping |
| hearthstone | A flat stone forming a hearth or part of a hearth |
| hearthstones | A flat stone forming a hearth or part of a hearth |
| capstones | A large, flat stone forming a roof over the chamber of a megalithic tomb |
| mensae | the flat stone forming the top of the altar in a Roman Catholic church |
| mensa | the flat stone forming the top of the altar in a Roman Catholic church |
| mensas | the flat stone forming the top of the altar in a Roman Catholic church |
