What is the Meaning & Definition of Veto

The term veto has a Latin root and directly concerns a ban, a refusal.
It is usually employed by a party who has the right to stop unilaterally a certain standard, i.e., with the veto can stop any changes made on a standard, but what is not possible through a veto is to adopt any changes. In some international organizations, countries considered power, have the right of veto to thus be able to oppose a law or decision although it has been approved by a majority.
On the other hand, in many countries, the President of the nation also has the right to veto any rule or law once it has been approved and enacted by the legislature.
For example, in the United States, the President has the Faculty of veto of the legislation that has already passed by Congress, although this right is not absolute, because a super-majority of two thirds of both houses can however pass a law still weighing a presidential veto on the same, but if on the contrary law has nothing more simple majority the veto of the President will be decisive.
Another country in which the President disposes of this ability is the Argentina, even more recently, the presidential veto to the law of 82% mobile that had increased to pensions and which was approved by both houses of the National Congress caught the attention of public opinion because the veto of President Cristina Fernandez de Kirchner was without effect a rule that benefited a good part of retirees.
In the case of the Security Council of the UN, who are permanent members, Russia, China, United States, United Kingdom and France, have the right of veto, which is Yes turns out to be absolute, because although the rest of the members have voted in favour of a law if one of the permanent members do against it the same will be roundly rejected.
Article contributed by the team of collaborators.