- another word for copestone (def. 1)
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
Examples from the Web for coping stone
The coping-stone of the wall was loose,—had become loosened by the frost.The Crofton Boys
This is the science of the pure reason, the coping-stone of knowledge.
It is through this Juliana that we obtain the coping-stone of proof.
And was her coming out to be the putting on of the Coping-stone?
When you reach this knowledge, Phillis, be sure that the Coping-stone is not far-off.