Binding (adjective)

1. Having the power or quality of binding or holding fast, as a rope or chain.
2. Legally or formally obligating.

Origin:

Derived from the old english word 'bindan' which means to tie or fasten.

Examples:

1. The binding on the book was strong and held all the pages together securely.
2. The contract was binding and both parties were obligated to adhere to its terms.
3. The binding agreement between the two companies ensured that they would work together for the next five years.
4. The binding decision of the court was final and could not be appealed.
5. The binding force of gravity holds planets in orbit around the sun.