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cor·ner·stone
 cornerstone
- pronunciation:
- kor
n
 r
ston
| part of speech: |
noun |
| definition 1: |
a stone placed at the corner joining two masonry walls.
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| definition 2: |
a foundation stone laid at the onset of construction, sometimes carved with the date or hollowed to contain items of historical interest.
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| definition 3: |
something basic and indispensable; foundation.
The humanities are the cornerstone of a broad education.- similar words:
- essential, fundamental
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| related words: |
backbone, base, basis, core, emphasis |
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