| Answer | Crossword Clue |
|---|---|
| ESTD | Abbr. on a foundation stone |
| ESTD | Foundation stone abbr. |
| headstone | the principal stone in a foundation; the chief or corner stone |
| headstones | HEADSTONE, the principal stone in a foundation; the chief or corner stone |
| cornerstones | A stone ceremonially laid usually at the corner of a foundation to mark the occasion of a building being erected |
| cornerstone | A stone ceremonially laid usually at the corner of a foundation to mark the occasion of a building being erected |
