/ Dictionary / Index S Sunbelt: Meaning and Definition of Find definitions for: Sun•belt Pronunciation: (sun'belt"), [key] — n. the southern and southwestern region of the U.S. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: sunbelt (Thesaurus) sun bear sunberry Related Content Daily Word Quiz: fidelity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language