Vendetta

Noun

 * 1) A bitter, destructive feud, normally between two families, clans or factions, in which each injury or slaying is revenged; a blood feud

Thesaurus
acrimony, altercation, animosity, animus, argument, avengement, bad blood, bicker, bitter feeling, bitterness, blood feud, brawl, broil, conflict, contention, controversy, dispute, donnybrook, donnybrook fair, embroilment, enmity, feud, fight, fliting, fracas, fuss, getting even, hard feelings, hatred, ill blood, ill feeling, ill will, imbroglio, logomachy, open quarrel, polemic, quarrel, rancor, reprisal, retaliation, revanche, revanchism, revenge, rhubarb, rivalry, row, set-to, sharp words, slanging match, snarl, soreness, sourness, spat, squabble, strife, sweet revenge, tiff, tussle, vengeance, venom, virulence, vitriol, words, wrangle