Definition of Index

an alphabetical list of names, subjects, etc. that is in a book

Examples of Index in a sentence

An index of words is included in the science book to help the students learn the meanings of each one in the list.  🔊

The librarian keeps an alphabetical index that lists all of the novels that can be found on the first two shelves.  🔊

In the filing cabinet, there is an employee book that includes a complete index of all of the workers’ names.  🔊

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