a concerted campaign to end something that is injurious; "the war on poverty"; "the war against crime"
the waging of armed conflict against an enemy; "thousands of people were killed in the war"
an active struggle between competing entities; "a price war"; "a war of wits"; "diplomatic warfare"
a legal state created by a declaration of war and ended by official declaration during which the international rules of war apply; "war was declared in November but actual fighting did not begin until the following spring"
involving or likely to cause controversy; "a central and contentious element of the book"- Tim W.Ferfuson
inclined or showing an inclination to dispute or disagree, even to engage in law suits; "a style described as abrasive and contentious"; "a disputatious lawyer"; "a litigious and acrimonious spirit"
a disagreement or argument about something important; "he had a dispute with his wife"; "there were irreconcilable differences"; "the familiar conflict between Republicans and Democrats"