hinge
mechanical bearing that connects two solid objects (usually flat objects like doors), typically allowing only a limited angle of rotation between them
living hinge
flexible hinge made of a thin, durable material that allows repeated bending without breaking
Floating hinge
type of hinge that allows rotation and some linear movement
door hinge
hinge for doors
gooseneck
type of sailing rigging attachment
Geared continuous hinge
A type of continuous hinge used mostly on doors in high-traffic entrances