divide

Perform a division.

“Can you divide 49 by seven?”

Act as a barrier between; stand between.

“The mountain range divides the two countries”

Separate into parts or portions.

“divide the cake into three equal parts”

Force, take, or pull apart.

Make a division or separation.

Come apart.

A ridge of land that separates two adjacent river systems.

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