Noun:
1: mob, rout, rabble a disorderly crowd of people
2: syndicate, family, crime syndicate, mob a loose affiliation of gangsters in charge of organized criminal activities
3: gang, ring, pack, mob an association of criminals; "police tried to break up the gang"; "a pack of thieves"
Verb:
1: mob, pile, throng, pack, jam press tightly together or cram; "The crowd packed the auditorium"