• Execution is a synonym for the actioning of something, of putting something into effect. E.g. the execution of a contract or a financial trade is the point at which it becomes binding.
• Execution is the act of putting a person to death, according to judicial process. The same term is also sometimes applied by non-judicial groups who consider their killings to be justified by their ideology.
• Execution is the process by which a computer carries out instructions of a computer program.
• Execution is the aspect of management effectiveness whereby managers see that their plans are carried out by the members of the organization.