binding >> /ˈbaɪndɪŋ/
Definition: [noun] A strong covering holding the pages of a book together.
Example: A beautiful book with perfect bindings and 5 star ratings?
Definition: [noun] A mechanical device fixed to a ski to grip a ski boot, especially either of a pair used for downhill skiing which hold the toe and heel of the boot and release it automatically in a fall.
Example: The recipe is simple but tasty: add an ice skating blade with a clip-in ski binding to a skate-ski boot.
Definition: [noun] The action of fastening or holding together, or of being linked by chemical bonds.
Example: the binding of antibodies to cell surfaces
Definition: [adjective] (of an agreement or promise) involving an obligation that cannot be broken.
Example: business agreements are intended to be legally binding