/ Dictionary / Index R regnat populus*: Meaning and Definition of Find definitions for: reg•nat po•pu•lus Pronunciation: (reg'nät pô'poo-loos" Eng. reg'nat pop'y&schwa-l&schwas), [key] — Latin. Latin. let the people rule: motto of Arkansas. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. regnant regolith Related Content Daily Word Quiz: vertigo Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language