 keystone |
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| 1. | [ noun ] a central cohesive source of support and stability | |
| Synonyms: | anchor backbone linchpin lynchpin mainstay | |
| Examples: | "faith is his anchor" "the keystone of campaign reform was the ban on soft money" "he is the linchpin of this firm" |
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| Related terms: | support anchor | |
| 2. | [ noun ] (architecture) the central building block at the top of an arch or vault | |
| Synonyms: | key headstone | |
| Related terms: | building_block quoin arch | |
| Similar spelling: |
Kestner Kesten |
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