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n.
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"
n.
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"
n.
an extended communication (often interactive) dealing with some particular topic; "the book contains an excellent discussion of modal logic"; "his treatment of the race question is badly biased"