1. A central cohesive source of support and stability
   "he is the linchpin of this firm"
   - anchor, mainstay, keystone, backbone, lynchpin 
2. Pin inserted through an axletree to hold a wheel on
   - lynchpin

Derived forms: linchpins

Type of: pin, support

Encyclopedia: Linchpin

• gateway drug
• Gateway to the West
• gather
• gather in
• gather up
• gathered
• gathered skirt
• gatherer
• gathering
• gathering place
• Gathic
• Gatling
• Gatling gun
• gator
• GATT
• gauche
• gaucheness
• Gaucher's disease
• gaucherie
• gaucho
• gaud
• gaudery
• Gaudi
• Gaudi i Cornet
• gaudily