Genocide is defined as a systematic and intentional destruction of a racial, ethnic or national group. The term has been used to describe some of the most horrific events in human history, such as the Holocaust and the Rwandan genocide. However, there are other words that can be used to describe similar events, such as ethnic cleansing, massacre, extermination, and annihilation. These words also involve the killing of a large number of people, but the context and methods used may differ. It is crucial to recognize and name such events accurately, as this can help in preventing similar acts in the future and bringing justice to the victims.