Definition of cornerstone
- a cornerstone of foreign policy
Officials held a ceremony to lay the cornerstone for a new library.
Trust is the cornerstone of their relationship.
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See words that rhyme with cornerstone Thesaurus: All synonyms and antonyms for cornerstone Spanish Central: Translation of cornerstone Nglish: Translation of cornerstone for Spanish speakers Britannica English: Translation of cornerstone for Arabic speakers Britannica.com: Encyclopedia article about cornerstone
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