stackindex
nounUK /ˈstækˌɪndeks/
US /ˈstækˌɪndɛks/
A stackindex is a list that helps you find things in a pile.
The librarian used a stackindex to find the book in the tall pile.
OTHER MEANINGS
2. A number that shows a position in a stack of items.
The program read the stackindex to find the right card.
3. A tool that keeps track of layers in a pile.
He checked the stackindex before moving the boxes.
4. A small label on a stack that tells what is inside.
Each stackindex on the shelf showed the group name.