<p><strong>Noun</strong></p><ul><li>Also called blood feud.</li><li>a bitter, continuous hostility, especially between two families, clans, etc., often lasting for many years or generations.</li><li>a bitter quarrel or contention: a feud between labor and management.</li></ul><p><strong>Synonyms</strong></p><ul><li>difference, argument</li></ul><p><strong>Verb (used without object)</strong></p><ul><li>to engage in a feud.</li></ul>