When a human being is killed by another human being, this event is called a homicide, manslaughter, heroism in time of [[war]. When a human being chooses to be killed by their own actions, it is called a suicide.
A kill is also the act of shooting down a fighter aircraft. The word kill is very serious; it means that someone might soon meet their death if they are not careful. People who kill others are called murderers.
When a soldier kills another in war, it is called "combat". When the state kills a criminal, it is called Capital punishment. When someone kills a politician it is called assassination. When a person who wants to die is killed by another, it is called euthanasia. When people watch people killing each other on television, it is called crime drama or entertainment. When people kill other people to eat them, it is called cannibalism.