Definition of: hinge

(hinj) noun
1. A device allowing one part to turn upon another: the hook or joint on which a door or shutter swings or turns.
2. A device consisting of two metal plates joined by a rod, used as to connect a lid to a box.
3. A natural articulation; a joint, as in the shell of an oyster.
4. A pivotal point on which anything depends for its effect or course.
—v. hinged, hing·ing v.i.
1. To have one's course determined by an action or eventuality; be dependent: with on or upon: The deal hinged on his acceptance of the offer.
—v.t.
2. To attach by or equip with a hinge or hinges. [ME hengen, prob. <ON hengja hang. Related to HANG.]