Webster's Revised Unabridged Dictionary · 1913

Mob

Mob , noun

[See Mobcap.]

A mobcap. — Goldsmith

Mob , transitive verb

To wrap up in, or cover with, a cowl. [Rare]

Mob , noun

[Latin mobile vulgus, the movable common people. See Mobile, n.]

1.
The lower classes of a community; the populace, or the lowest part of it.
A cluster of mob were making themselves merry with their betters. — Addison
2.
A throng; a rabble; esp., an unlawful or riotous assembly; a disorderly crowd.
The mob of gentlemen who wrote with ease. — Pope
Had every Athenian citizen been a Socrates, every Athenian assembly would still have been a mob. — Madison
Confused by brainless mobs. — Tennyson
3.
A criminal organization or organized criminal gangs, collectively; the Mafia; the syndicate; as, he was a lawyer for the mob.
Collocations (2)
Mob law , law administered by the mob; lynch law.
Swell mob , well dressed thieves and swindlers, regarded collectively. [Slang] — Dickens

Mob , transitive verb

To crowd about, as a mob, and attack or annoy; as, to mob a house or a person.