Noun Definition

cornerstone

1.Definition: a stone at the outer corner of two intersecting masonry walls

Category: Objects

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

Category: Objects

3.Definition: the fundamental assumptions from which something is begun or developed or calculated or explained

Related Noun(s):base, basis, foundation, fundament, groundwork

Category: General