/ Dictionary / Index S Samnium: Meaning and Definition of Find definitions for: Sam•ni•um Pronunciation: (sam'nē-um), [key] — n. an ancient country in central Italy. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Sammy Samo 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