split, dissever, disunite, split up, part, fraction, separate, water parting, carve up, watershed, more...

unite, merge, connect, join, consolidate

continental, oceanic, equatorial, tropical, arctic, Antarctic, artificial, political, social, economic, more...

digital, great, continental, cultural, south, racial, political, private, main, ideological, low

split in two,   to separate,   to seperate,   split into two,   split between,   and conquer,   one bocomes two,   share equally,   evenly split,   cause dissension