linchpin
1. |
(noun) a pin inserted through an axletree to hold a wheel on |
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Synonyms: lynchpin |
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Related Words: pin |
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2. |
(noun) a central cohesive source of support and stability: "faith is his anchor"; "he is the linchpin of this firm" |
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Synonyms: anchor, backbone, lynchpin, mainstay |
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Related Words: support |
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