divide in WordNet English dictionary

1. separate into parts or portions
   "divide the cake into three equal parts"; "The British carved up the Ottoman Empire after World War I"
   divide  split  split up  separate  dissever  carve up 
   
2. force, take, or pull apart
   "He separated the fighting children"; "Moses parted the Red Sea"
   separate  disunite  divide  part 
   
3. perform a division
   "Can you divide 49 by seven?"
   divide  fraction 
   
4. come apart
   "The two pieces that we had glued separated"
   separate  divide  part 
   
5. make a division or separation
   separate  divide 
   
6. act as a barrier between; stand between
   "The mountain range divides the two countries"
   separate  divide 
   

1. a ridge of land that separates two adjacent river systems
   watershed  water parting  divide 
   
2. a serious disagreement between two groups of people (typically producing tension or hostility)
   divide