The antonyms for the word "more killing" are abundant, and they include terms like peace, harmony, love, and safety. Instead of continuing to engage in violent behavior, focusing on forgiveness, understanding, and compromise can help reduce the number of deaths and injuries caused by aggression. Additionally, implementing measures such as education, poverty reduction, and increasing access to mental health care can address the root causes of violence and help prevent it. By working together to promote nonviolent conflict resolution, individuals and communities can make a positive impact towards a more peaceful society.