indexes
n. countablen. alphabetical lists of names or topics, usually found at the back of a book, that show which page to look at. They help you find specific information quickly.
n. alphabetical lists of subjects or terms with references to the places where they occur. Plural form of 'index'; the alternative plural 'indices' is preferred in mathematical or technical contexts.
Most history books have detailed indexes at the back.
The researcher spent hours checking the book's indexes to find every mention of the ancient city.
While digital search tools have reduced the reliance on physical indexes, well-curated back-of-the-book lists remain essential for navigating complex academic texts where keywords alone are insufficient.
Plural form of 'index'. In general publishing, 'indexes' is standard; in mathematics, economics, and science, 'indices' is more common.