Definition
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noun : CORNERSTONE
Source:WordNet 3.1
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1. (
) the fundamental assumptions from which something is begun or developed or calculated or explained; "the whole argument rested on a basis of conjecture" ;
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2. (
) a stone in the exterior of a large and important building; usually carved with a date and laid with appropriate ceremonies ;
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3. (
) a stone at the outer corner of two intersecting masonry walls ;
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