Dictionary and Thesaurus

Definition of Lynchpin

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

Synonyms of Lynchpin

• Anchor
• Mainstay
• Keystone
• Backbone
• Linchpin
• Linchpin

Antonyms of Lynchpin

Homophones of Lynchpin