1. a disorderly or riotous crowd of people.
2. a crowd bent on or engaged in lawless violence.
3. any group or collection of persons or things.
4. the common people; the masses; populace or multitude.
5. a criminal gang, esp. one involved in drug trafficking, extortion, etc.
6. the Mob, Mafia (def. 1).
7. Sociology. a group of persons stimulating one another to excitement and losing ordinary rational control over their activity.
8. a flock, herd, or drove of animals: a mob of sheep.
–adjective
9. of, pertaining to, or characteristic of a lawless, irrational, disorderly, or riotous crowd: mob rule; mob instincts.
10. directed at or reflecting the lowest intellectual level of the common people: mob appeal; the mob mentality.
–verb (used with object)
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. Fox Hunting. to chop (a fox).