mob

noun

• 1a large crowd of people, especially one that is disorderly and intent on causing trouble or violence:a mob of protesters
• British informal a group of people in the same place or with something in common:he stood out from the rest of the mob with his silver hair and stacked shoes
• (the mob) the ordinary people:the age-old fear that the mob may organize to destroy the last vestiges of civilized life

• 2 (usually the Mob) North American the Mafia or a similar criminal organization: he gambled at a time when the Mob ran gaming

• 3Australian/NZ a flock or herd of animals:a mob of cattle

verb (mobs, mobbing, mobbed)

• crowd round (someone) or into (a place) in an unruly way:he was mobbed by autograph hunters
• (of a group of birds or mammals) surround and attack (a predator or other source of threat) in order to drive it off: a cuckoo flew over, to be mobbed at once by two reed warblers (as noun mobbing)small mammals may indulge in mobbing to rid themselves of a feared killer