from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A stone at the corner of a building uniting two intersecting walls; a quoin.
- n. Such a stone, often inscribed, laid at a ceremony marking the origin of a building.
- n. An indispensable and fundamental basis: the cornerstone of an argument.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A ceremonial stone set at the corner of a building, joining two exterior walls, and often inscribed with the starting and completion dates of construction, the name of the architect and owner, and other details.
- n. By extension, that which is prominent, fundamental, noteworthy, or central.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a stone at the outer corner of two intersecting masonry walls
- n. the fundamental assumptions from which something is begun or developed or calculated or explained
- n. a stone in the exterior of a large and important building; usually carved with a date and laid with appropriate ceremonies
Sorry, no etymologies found.