linchpin

English Dictionary -> Letter L -> linchpin

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linchpin Definition

• (n) 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"
• (n) pin inserted through an axletree to hold a wheel on

linchpin Synonyms

• anchor
• backbone
• keystone
• linchpin
• lynchpin
• mainstay