Firing (noun)

1. The action of discharging a weapon.
2. The dismissal of an employee from a job.

Origin:

Late 16th century: from fire (verb) + -ing.

Examples:

1. The firing of the gun was heard in the distance.
2. The firing squad was ready to execute the prisoner.
3. The CEO announced the firing of several top executives.
4. He was in charge of the firing of the kiln.
5. The company's decision to fire the workers caused a lot of controversy.