Synonyms and Antonyms for cornerstone

1. cornerstone (n.)

a stone at the outer corner of two intersecting masonry walls

Synonyms:

2. cornerstone (n.)

the fundamental assumptions from which something is begun or developed or calculated or explained

Synonyms:

3. cornerstone (n.)

a stone in the exterior of a large and important building; usually carved with a date and laid with appropriate ceremonies

Synonyms: