Function: noun
Date: 1945
1 : a conflict over ideological differences carried on by methods short of sustained overt military action and usually without breaking off diplomatic relations specifically often capitalized C&W : the ideological conflict between the U.S. and the U.S.S.R. during the second half of the 20th century ― compare HOT WAR
2 : a condition of rivalry, mistrust, and often open hostility short of violence especially between power groups (as labor and management)