Difference between Plebeian and Pleb

PLEBEIAN vs PLEB: NOUN

One of the common people or lower ranks: first applied to the common people of ancient Rome, comprising those free citizens who were not descended from the original or patrician families. See plebs.
One of the plebs, or common people of ancient Rome, in distinction from patrician.
A vulgar or coarse person.
A member of the lower classes.
One of the common people

Proletarian, Uncouth, Leisured, Highborn, Aristocratic, Lumpen, Plebian, Roturier, Aediles, Mean, Lowborn, Common, Vulgar, Unwashed, Pleb

Male chauvinist pig, Sneery, Pommy, Twat, Poncy, Blighter, Berk, Ponce, Twit, Cretin, Pillock, Chinless wonder, Prole, Commoner, Plebeian

Snobbish, Proletarian, Uncouth, Leisured, Highborn, Aristocratic, Lumpen, Plebian, Roturier, Mean, Lowborn, Common, Vulgar, Unwashed, Pleb

Male chauvinist pig, Sneery, Pommy, Twat, Poncy, Blighter, Berk, Ponce, Twit, Cretin, Pillock, Chinless wonder, Prole, Commoner, Plebeian

Suchathing, they think he is some plebeian, unworthy of any particular attention.
Created, written, edited and put together by your friendly Plebeian staff.
To each plebeian citizen also was given an Attic mina.
Exit Cassius with Second Plebeian and some of the Plebeians.
Civilizing Left Populism: Towards a Theory of Plebeian Democracy.
Tiberius then used the Plebeian Council to impeach Octavius.
Original, natural, native, uncultivated, unrefined, plebeian, vulgar, low.
Camus Marcius Rutilus first Plebeian Dictator at Rome.
Undoubtably a function of my more plebeian tastes.
What else does the Plebeian have to do?

Benhur first served the government when he was appointed commissioner of the city's People's Law Enforcement Board (PLEB) from 1991 to 1994.
The DILG shall provide for the per diem and insurance coverage of PLEB members in certain low income municipalities.
If re-elected, and subsequently re-designated to the PLEB, he must take a new oath of office.
But without a decent gun I just feel like a pleb.