Cornerstone — synonyms, definition

1. cornerstone (Noun)

base basis foundation fundament groundwork

cornerstone (Noun) — The fundamental assumptions from which something is begun, developed, calculated or explained. ex. "the whole argument rested on a cornerstone of conjecture"

cornerstone (Noun) — A stone in the exterior of a large and important building; usually carved with a date and laid with appropriate ceremonies.

cornerstone (Noun) — A stone at the outer corner of two intersecting masonry walls.

assumption stone supposal supposition meat and potatoes building edifice explanation