index Meaning in the Cambridge English Dictionary
Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

Meaning of “index” in the English Dictionary

"index" in British English

See all translations


uk   us   /ˈɪn.deks/ (plural indices or indexes)

index noun (LIST)

C1 [C] an alphabeticallist, such as one ​printed at the back of a ​bookshowing which ​page a ​subject, ​name, etc. is on: Try ​looking up "​heartdisease" in the index. [C] a ​collection of ​informationstored on a ​computer or on a set of ​cards, in alphabeticalorder: He still has all his ​friends' ​names and ​addresses on a card index.
More examples

index noun (COMPARISON)

[C] a ​system of ​numbers used for ​comparingvalues of things that ​changeaccording to each other or a ​fixedstandard: the FTSE 100 Index the Dow Jones Index a ​wage/​price index [C usually singular] something that ​shows how ​strong or ​common a ​condition or ​feeling is: Consumer ​spending is often a good index ofpublicconfidence in the ​economy.
More examples

indexverb [T]

uk   us   /ˈɪn.deks/

index verb [T] (MAKE LIST)

to ​prepare an index for a ​book or ​collection, or ​arrange it in an index: Our ​computer indexes several thousand new ​records every second. The ​bookcontains a lot of ​information, but it's not very well indexed.

index verb [T] (COMPARE)

to ​change a ​system of ​numbersaccording to each other or a ​fixedstandard: Living ​expenses will be indexed to/in ​line withinflation (= to take ​inflation into ​consideration).
(Definition of index from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"index" in American English

See all translations

indexnoun [C]

 us   /ˈɪn·deks/ (plural indexes  /ˈɪnˌdek·səz/ or indices  /ˈɪn·dəˌsiz/ )

index noun [C] (LIST)

writing an ​alphabeticallist, such as one ​printed at the back of a ​bookshowing on which ​page a ​name or ​subjectappears, or ​computerinformationordered in a ​particular way: If you ​want to ​find the ​place in the ​text that Henry James is ​mentioned, ​look it up in the index.

index noun [C] (COMPARISON)

a ​number used to show the ​value of something by ​comparing it to something ​else whose ​value is ​known: a ​wage/​price index fig. The ​rate of ​consumerspending is often ​thought to be an index of ​publicconfidence (= show the ​state of the public’s ​confidence) in the ​health of the ​economy.

indexverb [T]

 us   /ˈɪn·deks/

index verb [T] (MAKE LIST)

to ​prepare an index for a ​book, or to ​arrangeinformation in an index: He ​organized and indexed the ​material by ​computer.

index verb [T] (MAKE COMPARISON)

to ​vary a ​system of ​numbers against another or against a ​fixedstandard: SocialSecuritypayments are indexed to (= ​adjusted to ​allow for)inflation every ​year.
(Definition of index from the Cambridge Academic Content Dictionary © Cambridge University Press)

"index" in Business English

See all translations

indexnoun [C]

uk   us   /ˈɪndeks/
(plural indices, indexes) FINANCE, ECONOMICS a ​system that ​measures the ​presentvalue of something when compared to its previous ​value or a ​fixedstandard: The houseprice indexestimates the ​change in the ​value of the nation's ​housingstock. a bond/​share/​stock indexan index of sth The ​fundtracks an index of the UK's ​top 350 UK ​shares.
(plural indices) a ​sign or ​measure of something: an index of sth Unemployment ​levelsprovide a useful index of the ​state of the ​economy.
(plural indexes) an alphabetical ​list that ​shows you where ​information is ​found in a ​book, on a ​website, etc.: a searcheable index online indexes to ​articles and ​reports
(plural indexes) a ​collection of ​information that is ​stored in alphabetical ​order: I ​keep an index of all my ​clients' ​contact details.

indexverb [T, usually passive]

uk   us   /ˈɪndeks/
FINANCE to ​connect the ​value of a ​price or ​payment to the ​value of something else such as the ​rate of ​inflation: be indexed to sth The ​pension is indexed to ​earnings. The ​unions are ​demandingwagerises indexed to ​prices.
to ​provide a ​book or ​website with an index: All ​contentheld in the ​site is fully indexed.
(Definition of index from the Cambridge Business English Dictionary © Cambridge University Press)
What is the pronunciation of index?
Add Cambridge dictionaries to your browser to your website

“index” in Business English

Word of the Day


a large tree with leaves divided into five parts and large round nuts that can be eaten

Word of the Day