Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “index”

See all translations

index

noun [C]
 
 
/ˈɪndeks/
LIST ( plural indexes) an alphabetical list of subjects or names at the end of a book, showing on what page they are found in the text: Look up 'heart disease' in the index.Books and parts of booksLists and cataloguesSchedules and agendas
INFORMATION ( plural indexes) a collection of information stored on a computer or on cards in alphabetical orderComputer concepts
SYSTEM ( plural indices, indexes) a system for comparing different values and recording changes, especially in financial markets: the retail price indexNumerical relationships
(Definition of index noun from the Cambridge Learners Dictionary © Cambridge University Press)
Add Cambridge dictionaries to your browser to your website

More Learner's Dictionary definitions for “index”

Definitions of “index” in other dictionaries

Word of the Day

shampoo

a liquid used for washing hair, or for washing particular objects or materials

Word of the Day

The way we move (Verbs for walking and running)

by Kate Woodford,
March 25, 2015
​​​ This week we’re looking at interesting ways to describe the way that people move. Most of the verbs that we’ll be considering describe how fast or slow people move. Others describe the attitude or state of mind of the person walking or running. Some describe both. Starting with verbs for walking slowly,

Read More 

crossfit noun

March 23, 2015
high-intensity strength training Two women in strappy dresses discussed how much weight they could snatch

Read More