Doorstone definitions

Doorstone

• (n.) The stone forming a threshold.
Found on http://thinkexist.com/dictionary/meaning/doorstone/

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Doorstone

Door'stone` noun The stone forming a threshold.
Found on http://www.encyclo.co.uk/webster/D/110

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doorstone

a stone serving as the sill of a doorway.
Found on https://www.infoplease.com/dictionary/doorstone

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