Who were the main targets of mass killing during nazi regime?

Question: Who were the main targets of mass killing during nazi regime?

Nazies never used the words murder in their official communications. Mass murders were termed special treatment final solution for the Jews ,euthanasia for the disabled, selection and disinfections. Evacuation meant deporting people to gas chambers. They quickly began using the government to target and exclude jews from german society. Murder of six million european jews by the nazi german regime and its allies and collaborators.