Hardware on which doors open and close

noun

1. A jointed or flexible device on which a door, lid, or other swinging part turns
2. A flexible ligamentous joint
3. A small piece of thin gummed paper used in fastening a postage stamp in an album
4. A determining factor turning point

verb

1. To swing on or as if on a hinge

   "These thoughtful amenities include … an outdoor patio TV that hinges outward toward the pool …"

2. To be contingent on a single consideration or point
3. To attach by or furnish with hinges

noun

1. A joint between bones (as at the elbow) that permits motion in only one plane

idiom

1. To be determined or decided by (something) to depend on (something)

   "The outcome of the election hinges on how the candidates perform in the debate."

noun

1. A hinge usually mortised flush into the edge of a door and its jamb

noun

1. A hinge that has a thin pin joint and extends along the full length of the part to be moved