/ Dictionary / Index S southernmost: Meaning and Definition of Find definitions for: south•ern•most Pronunciation: (su'urn-mōst" or, esp. Brit., -must), [key] — adj. farthest south. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: southernmost (Thesaurus) Southern Min Southern Paiute Related Content Daily Word Quiz: pundit Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language