|Origin:||mobile vulgus 'excitable crowd', from mobilis; MOBILE1|
a large noisy crowd, especially one that is angry and violent
a mob of a few hundred demonstrators
They were immediately surrounded by the mob.
The leadership had been criticized for giving in to mob rule (=when a mob controls the situation rather than the government or the law).
a group of people of the same type [= gang]
The usual mob of teenagers were standing on the corner.
the heavy mob British English (=group of strong violent men)
What happens if they send the heavy mob round to find him?
the mafia (=a powerful organization of criminals)
4 old useSS
an insulting expression meaning all the poorest and least educated people in society
5 Australian EnglishTA
a large group of sheep or cattle