/ Dictionary / Index S South Portland: Meaning and Definition of Find definitions for: South' Port'land Pronunciation: [key] a city in SW Maine. 22,712. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Southport South River Related Content Daily Word Quiz: cygnet Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language