/ Dictionary / Index S southernism: Meaning and Definition of Find definitions for: south•ern•ism Pronunciation: (su'ur-niz"um), [key] — n. a pronunciation, expression, or behavioral trait characteristic of the U.S. South. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: southernism (Thesaurus) Southern Hemisphere southern lights Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language