If something is separable, it means it can be divided or taken apart.
The word separable makes people think of things that can be split into pieces or parts.
Examples:
The toy is separable into two parts.
The cake is not separable because it's all mixed together.
The separable pieces fit together like a puzzle.
The separable socks got mixed up in the laundry!
The separable robot can be taken apart and put back together.
The separable car can be taken apart and put in a box.