SOUTH VIETNAM(noun) Did you mean: Synonyms Rhymes Also try: southvietnamDefinitions There is 1 meaning of the phrase South Vietnam. South Vietnam - as a noun A former country in southeastern asia that existed from 1954 (after the defeat of the french at dien bien phu) until 1975 when it was defeated and annexed by north vietnam Word Variations & RelationsAnagrams Starts S Starts SO Starts SOU Starts SOUT Ends M Ends AM Ends NAM Ends TNAM Starts S & ends M Starts SO & ends M Starts S & ends AM A-Z Proximitiessouterly 11souterrain 10souterrains 11souters 7south 8 South Vietnam south-centralsouth-eastsouth-polarsouth-southeastsouth-southwest