/ Dictionary / Index P pleb: Meaning and Definition of Find definitions for: pleb Pronunciation: (pleb), [key] — n. a member of the plebs; a plebeian or commoner. plebe (def. 1). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: pleb (Thesaurus) pleat plebe Related Content Daily Word Quiz: frugal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language