CORNERSTONE

cornerstone

(noun) a stone at the outer corner of two intersecting masonry walls

cornerstone

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

basis, base, foundation, fundament, groundwork, cornerstone

(noun) the fundamental assumptions from which something is begun or developed or calculated or explained; “the whole argument rested on a basis of conjecture”

Source: WordNet® 3.1

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Etymology

Noun

cornerstone (plural cornerstones)

A stone forming the base at the corner of a building.

Such a stone used ceremonially, often inscribed with the architect's and owner's names, dates and other details.

(figuratively) That which is prominent, fundamental, noteworthy, or central.

Coordinate terms

• foundation stone

• keystone

• milestone

• quoin

• touchstone

Anagrams

• nonsecretor

Source: Wiktionary

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