SOUTH ISLAND(noun)Did you mean?RhymesAlso 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 & RelationsAnagramsStarts SStarts SOStarts SOUStarts SOUTEnds DEnds NDEnds ANDEnds LANDStarts S & ends DStarts SO & ends DStarts S & ends NDA-Z Proximitiessouterly11souterrain10souterrains11souters7south8 South Island south-centralsouth-eastsouth-polarsouth-southeastsouth-southwest