Definition of mob noun from the Oxford Advanced Learner's Dictionary



    BrE BrE//mɒb//
    ; NAmE NAmE//mɑːb//
    Groups of animals
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  1. 1[countable, singular + singular or plural verb] a large crowd of people, especially one that may become violent or cause trouble an angry/unruly mob The mob was/were preparing to storm the building. an excited mob of fans mob rule (= a situation in which a mob has control, rather than people in authority) see also lynch mob
  2. 2[countable, usually singular] (informal) a group of people who are similar in some way synonym gang All the usual mob were there.
  3. 3the Mob [singular] (informal) the people involved in organized crime; the Mafia
  4. 4[countable] (Australian English, New Zealand English) a group of animals synonym flock, herd a mob of cattle See related entries: Groups of animals
  5. Word Originlate 17th cent.: abbreviation of archaic mobile, short for Latin mobile vulgus ‘excitable crowd’.Extra examples the lawless days of mob rule and anarchy An angry mob of demonstrators came charging around the corner. He was greeted by a mob of well-wishers eager to shake his hand. Let’s get out of here before the mob gets out of control. a lynch mobIdioms (British English, informal) a group of strong, often violent people employed to do something such as protect somebody
See the Oxford Advanced American Dictionary entry: mob