foundation stone

1. 1.

   a stone laid at a ceremony to mark the founding of a new building

   Broaderstone

   Part ofbuilding

Questions about foundation stone

What does foundation stone mean?

foundation stone means "a stone laid at a ceremony to mark the founding of a new building".

Is foundation stone a common word?

foundation stone is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.