Can Feud Be a Verb?

FEUD (verb) definition and synonyms | Macmillan Dictionary.

Is feud a noun verb or adjective?

feud. noun (2) Definition of feud (Entry 2 of 2)

What is called feud?

A feud /fjuːd/, referred to in more extreme cases as a blood feud, vendetta, faida, clan war, gang war, or private war, is a long-running argument or fight, often between social groups of people, especially families or clans.