hinge

Words with a similar base: hinge

'hinge'

[hinge.n.01] as in: a joint that holds two parts together so that one can swing relative to the other

'hinge'

[hinge.n.02] as in: a circumstance upon which subsequent events depend

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Examples:
his absence is the hinge of our plan

'hinge'

[hinge.v.01] as in: attach with a hinge