divide - noun

a serious disagreement between two groups of people (typically producing tension or hostility)

a ridge of land that separates two adjacent river systems

divide - verb

• separate into parts or portions
• perform a division
• act as a barrier between; stand between
• come apart
• make a division or separation
• force, take, or pull apart

divide - thesaurus

dissever   disunite   fraction   part   separate   split   watershed