Nursing credentials and certifications. Nursing credentials and certifications are the various credentials and certifications that a person must have to practice nursing legally. 1  Nurses' postnominal letters (abbreviations listed after the name) reflect their credentialsâthat is, their achievements in nursing education, licensure, certification, and fellowship.
War is a state of armed conflict between societies. It is generally characterized by extreme collective aggression, destruction, and usually high mortality. The set of techniques and actions used to conduct war is known as warfare. An absence of war is usually called  peace . Total war is warfare that is not restricted to purely legitimate military targets, and can result in massive civilian or other non-combatant casualties.
â¢ COLD WAR (noun). The noun COLD WAR has 2 senses: 1. a state of political hostility between countries using means short of armed warfare. 2. a state of political hostility that existed from 1945 until 1990 between countries led by the Soviet Union and countries led by the United States. Familiarity information: COLD WAR used as a noun is rare. Dictionary entry details.