Noun

• S: (n) divide (a serious disagreement between two groups of people (typically producing tension or hostility))
• S: (n) watershed, water parting, divide (a ridge of land that separates two adjacent river systems)

Verb

• S: (v) 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"
• S: (v) divide, fraction (perform a division) "Can you divide 49 by seven?"
• S: (v) separate, divide (act as a barrier between; stand between) "The mountain range divides the two countries"
• S: (v) separate, divide, part (come apart) "The two pieces that we had glued separated"
• S: (v) separate, divide (make a division or separation)
• S: (v) separate, disunite, divide, part (force, take, or pull apart) "He separated the fighting children"; "Moses parted the Red Sea"