[n] a line that divides two adjacent river systems
[v] perform a division; "Can you divide 49 by seven?"
[v] separate into parts or portions; "divide the cake into three equal parts"; "The British carved up the Ottoman Empire after World War I"
[v] force, take, or pull apart; "He separated the fighting children"; "Moses parted the Red Sea"
[v] come apart; "The two pieces that we had glued separated"
[v] make a division or separation
[v] act as a barrier between; stand between; "The mountain range divides the two countries"
carve up, dissever, disunite, fraction, part, separate, separate, separate, separate, split, split up, water parting, watershed