| 1. keystone [ Synonyms: anchor, backbone, linchpin, lynchpin, mainstay] | |
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A central cohesive source of support and stability
"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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کَليدی پَتھَر ۔ بُنيادی پَتھر ۔۔ |
| 2. keystone [ Synonyms: headstone, key] | |
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The central building block at the top of an arch or vault
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محراب کے سِرے کا پَتھر ۔۔ |