SOUTH ISLAND(noun) Did you mean: Rhymes Also try: southislandDefinitions There is 1 meaning of the phrase South Island. South Island - as a noun The larger but less populous of two main islands of new zealand; separated from north island by cook strait Word Variations & RelationsAnagrams Starts S Starts SO Starts SOU Starts SOUT Ends D Ends ND Ends AND Ends LAND Starts S & ends D Starts SO & ends D Starts S & ends ND A-Z Proximitiessouterly 11souterrain 10souterrains 11souters 7south 8 South Island south-centralsouth-eastsouth-polarsouth-southeastsouth-southwest