Termination (noun)

1. The action of bringing something to an end; the fact of being brought to an end.
2. The termination of a contract, agreement, or appointment.

Origin:

Late middle english (in the sense "act of terminating or ending"): from old french terminacion, or later from latin terminatio(n-), from terminare "to end or limit" (see terminate).

Examples:

1. The termination of her employment came as a shock.
2. The termination of the project was due to lack of funding.
3. The company announced the termination of its partnership with the supplier.
4. The termination of the lease meant they had to vacate the premises.
5. The termination of the negotiations resulted in no agreement being reached.