mob

I UK [mɒb] / US [mɑb] noun [countable]
Word forms "mob":
singular mob plural mobs
*

1)

a) a large crowd of people that is dangerous or difficult to control: can be followed by a singular or plural verb

An angry mob surrounded the palace.

mob of:

A mob of 200 young men started throwing rocks.

b) [only before noun] involving or typical of a mob

mob mentality

mob violence

2)

a) the mob or the Mob

informal an organized group of criminals such as the mafia

a member of a violent Russian mob

b) [only before noun] belonging to or involving an organized group of criminals

mob killings

one of Sicily's most notorious mob leaders

3) informal a group of people who are connected in some way: can be followed by a singular or plural verb

I wouldn't have anything to do with that mob if I were you.

4) Australian a large group of animals

5) the mob

old-fashioned an insulting word for the people from a low social class
II UK [mɒb] / US [mɑb] verb [transitive]
Word forms "mob":
present tense I/you/we/they mob he/she/it mobs present participle mobbing past tense mobbed past participle mobbed

if a large group of people mob someone or something, they surround them in an angry or excited way

The singer was mobbed by adoring fans as he left his hotel.

A large crowd jeered him and mobbed his car.