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1. A joint that holds two parts together so that one can swing relative to the other
   - flexible joint
    
2. A circumstance upon which subsequent events depend
   "his absence is the hinge of our plan"

1. Attach with a hinge

Derived forms: hinged, hinges, hinging

Type of: attach, circumstance, joint

Part of: bi-fold door, car door, exterior door, French door, gate, outside door, swing door, swinging door [N. Amer]

Encyclopedia: Hinge, John