divide -- (a serious disagreement between two groups of people (typically producing tension or hostility))
watershed, water parting, divide -- (a ridge of land that separates two adjacent river systems)
Overview of verb divide
The verb divide has 6 senses
divide, split, split up, separate, dissever, carve up -- (separate into parts or portions; "divide the cake into three equal parts"; "The British carved up the Ottoman Empire after World War I")
divide, fraction -- (perform a division; "Can you divide 49 by seven?")
separate, divide -- (act as a barrier between; stand between; "The mountain range divides the two countries")
separate, divide, part -- (come apart; "The two pieces that we had glued separated")
separate, divide -- (make a division or separation)
separate, disunite, divide, part -- (force, take, or pull apart; "He separated the fighting children"; "Moses parted the Red Sea")