When people or things are divided or divide into smaller groups or parts, they become separated into smaller parts.

If you divide something among people or things, you separate it into several parts or quantities which you distribute to the people or things.

If you divide a larger number by a smaller number or divide a smaller number into a larger number, you calculate how many times the smaller number can fit exactly into the larger number.

If a border or line divides two areas or divides an area into two, it keeps the two areas separate from each other.

If people divide over something or if something divides them, it causes strong disagreement between them.

A divide is a significant distinction between two groups, often one that causes conflict.

A divide is a moment in time or a point in a process when there is a complete change from one situation to another.

A divide is a line of high ground between areas that are drained by different rivers.

You use divide and rule to refer to a policy which is intended to keep someone in a position of power by causing disagreements between people who might otherwise unite against them.