noun / verb
index
IN-deks/ˈɪndeks/
An organized list that helps locate information.
The book's index lists topics with page numbers.

Etymology
The Latin noun named anything that points something out, including a pointing finger. A book's index performs that same function by directing readers from a topic to its location in the text.
In context
total number 244 the index at the back has page numbering which is quite useful then of course what you do have a substantial index there's the beginning of the index there
More examples
- She indexed the files.
- Several indexes needed updating.
- They are indexing the collection.
Forms
index · indexs · indexed · indexing · indexes