This document defines and discusses key terms around aggression and victims. It defines a victim as someone who is sacrificed, perishes in a disaster, succumbs to deception/oppression, or is forced to suffer impositions from others. An aggressor is defined as someone who attacks or makes an aggression. Aggressiveness is discussed as having retained meanings including behavior, emotional responses, and cognitive processes. It distinguishes between intrapsychic tendencies and observable aggressive behavior. It also differentiates between aggressive reactions, actions, and activities based on their complexity, duration, and relation to social and cultural models. Finally, it categorizes aggression along the dimensions of physical/verbal, direct/indirect, and human.