Conflict

A striking or dashing together; violent collision; as, a conflict of elements or waves.

A strife for the mastery; hostile contest; battle; struggle; fighting.

To strike or dash together; to meet in violent collision; to collide.

To maintain a conflict; to contend; to engage in strife or opposition; to struggle.

To be in opposition; to be contradictory.

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"

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"

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"

opposition between two simultaneous but incompatible feelings; "he was immobilized by conflict and indecision"

an incompatibility of dates or events; "he noticed a conflict in the dates of the two meetings"

a hostile meeting of opposing military forces in the course of a war; "Grant won a decisive victory in the battle of Chattanooga"; "he lost his romantic ideas about war when he got into a real engagement"

be in conflict; "The two proposals conflict!"