Conflict

v. oppose, disagree, quarrel, fight

n. clash, fight, quarrel

Conflict is a state of discord caused by the actual or perceived opposition of needs, values and interests between people. The result is stress or tension and negative feelings between disputants. A conflict can range from a disagreement, or clash, to a fight, which may consist of harsh words, or may involve the use of force, armed conflict, or (in societies), war. In political terms, "conflict" refers to an ongoing state of hostility between two or more groups of people.
See more at Wikipedia.org...

Conflict /con·flict/ a mental struggle, often unconscious, arising from the clash of incompatible or opposing impulses, wishes, drives, or external [more]Conflict - Community and Resources

Noun
1. an open clash between two opposing groups (or individuals); "the harder the conflict the more glorious the triumph"--Thomas Paine; "police tried to control the battle between the pro- and anti-abortion mobs"
(synonym) struggle, battle
(hypernym) group action
(hyponym) class struggle, class war, class warfare
2. opposition between two simultaneous but incompatible feelings; "he was immobilized by conflict and indecision"
(hypernym) ambivalence, ambivalency
3. a hostile meeting of opposing military forces in the course of a war; "Grant won a decisive victory in the battle of Chickamauga"; "he lost his romantic ideas about war when he got into a real engagement"
(synonym) battle, fight, engagement
(hypernym) military action, action
(hyponym) Armageddon
(part-holonym) war, warfare
(classification) military, armed forces, armed services, military machine, war machine
4. a state of opposition between persons or ideas or interests; "his conflict of interest made him ineligible for the post"; "a conflict of loyalties"
(hypernym) state
(hyponym) clash, friction
5. an incompatibility of dates or events; "he noticed a conflict in the dates of the two meetings"
(hypernym) incompatibility
6. opposition in a work of drama or fiction between characters or forces (especially an opposition that motivates the development of the plot); "this form of conflict is essential to Mann's writing"
(hypernym) opposition, oppositeness
7. 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"
(synonym) dispute, difference, difference of opinion
(hypernym) disagreement
(hyponym) collision
Verb
1. be in conflict; "The two proposals conflict!"
(hypernym) contrast, counterpoint
(hyponym) clash, jar, collide
2. go against, as of rules and laws; "He ran afould of the law"; "This behavior conflicts with our rules"
(synonym) run afoul, infringe, contravene
(hypernym) transgress, offend, infract, violate, go against, breach, break

n. conflict, clash, fight, quarrel