1. to separate into parts, groups, sections, etc.
2. to separate or part from something else; sunder; cut off.
3. to deal out in parts; distribute in shares; apportion.
4. to cleave; part.
5. to separate in opinion or feeling; cause to disagree.
6. a division.
7. Physical Geography: the line or zone of higher ground between two adjacent streams or drainage basins.
8. Archaic: the act of dividing.
Etymology: Middle English (< Anglo-French divider) < Latin divider - to separate, divide.