foundation stone


noun

any of the stones composing the foundation of a building.
a cornerstone.

Origin of foundation stone

First recorded in 1645–55
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for foundation stone

foundation stone


noun

a stone laid at a ceremony to mark the foundation of a new building
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012