MOB definition in American English | Collins English Dictionary (2025)

A mob is a large, disorganized, and often violent crowd of people.

The inspectors watched a growing mob of demonstrators gathering.

You can refer to the people involved in organized crime as the Mob.

[informal]

He makes ends meet by working as a forger for the Mob.

People sometimes use the mob to refer in a disapproving way to the majority of people in a country or place, especially when these people are behaving in a violent or uncontrolled way.

[mainly British, disapproval]

If they continue like this there is a danger of the mob taking over.

If you say that someone is being mobbed by a crowd of people, you mean that the people are trying to talk to them or get near them in an enthusiastic or threatening way.

Her car was mobbed by the media.

1.

a disorderly and lawless crowd; rabble

2.

any crowd

3.

the masses; common people collectively

a contemptuous term

4. Informal

5.

to crowd around and attack

6.

7.

1.

a disorderly or riotous crowd of people

2.

3.

any group or collection of persons or things

4.

5.

6. See the Mob

7.Sociology

8.

a flock, herd, or drove of animals

a mob of sheep

9.

of, pertaining to, or characteristic of a lawless, irrational, disorderly, or riotous crowd

mob rule

mob instincts

10.

mob appeal

the mob mentality

11.

to crowd around noisily, as from curiosity or hostility

Spectators mobbed the courtroom

12.

to attack in a riotous mob

The crowd mobbed the consulate

13.Hunting

1.

2.often derogatory

a group or class of people, animals, or things

3. Australian and New Zealand

4.often derogatory

the masses

5. slang

6.

to attack in a group resembling a mob

7.

they mobbed the film star

8.

to crowd into (a building, plaza, etc)

9.

a portable telephone that works by means of a cellular radio system