A large or disorderly group of people; especially one bent on riotous or destructive action. / (archaic) The lower classes of a community; the rabble.

(transitive) To crowd around (someone), sometimes with hostility. / (transitive) To crowd into or around a place.

(obsolete) A promiscuous woman; a harlot or wench; a prostitute. / A mob cap.

(transitive) To wrap up in, or cover with, a cowl.

mobile phone

The Mafia: any particular mafia, mentioned uniquely within the discussion's established or implicit context, usually and especially the Sicilian–Italian–Italian-American one (especially in American English) but occasionally others (e.g., the Russian one, the Japanese one).

simple past tense and past participle of mob

Crowded

present participle of mob

(biology) The aggressive behaviour of a group of animals on another individual (especially a predator). / Group bullying. / (software engineering) Mob programming.