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index

in·dex

index

 
 
pronunciation:
In deks
features:
Word History, Word Explorer
part of speech: noun
inflections: indexes, indices
definition: a list of subjects, names, or other information in a book, with page numbers given for each thing on the list.
Look at the index in the back of the book. It will tell you which page has the information you want.
Word History
Index was a Latin word that came from another Latin word, indicare, which means "to point out" or "indicate." In Latin, "index" could mean "forefinger," "pointer," "list," or anything that points to something else. The index of a book points you to the places in the book you are interested in.
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See
  book, number