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1. Dictionary

   In·dex

   /ˈinˌdeks/

   

   noun

   • 1. an alphabetical list of names, subjects, etc., with references to the places where they occur, typically found at the end of a book: "clear cross references supplemented by a thorough index"
   • ▪ an alphabetical list by title, subject, author, or other category of a collection of books or documents, e.g., in a library. Similar registerlistlistinginventorydirectoryguidekeycatalogtable of contents
   • ▪ short for Index Librorum Prohibitorum
   • ▪ a set of items each of which specifies one of the records of a file and contains information about its address.
   • 2. an indicator, sign, or measure of something: "exam results may serve as an index of the teacher's effectiveness" Similar guidecluehintindicationindicatorleadsignsignalmarktokenevidencesymptomimplicationintimationsuggestion
   • ▪ a figure in a system or scale representing the average value of specified prices, shares, or other items as compared with some reference figure: "the hundred-shares index closed down 9.3"
   • ▪ a number giving the magnitude of a physical property or another measured phenomenon in terms of a standard: "the oral hygiene index was calculated as the sum of the debris and calculus indices"
   • 3. an exponent or other superscript or subscript number appended to a quantity.
   • 4. a pointer on an instrument, showing a quantity, a position on a scale, etc. Similar pointerindicatorneedlehandfingermarker
   • ▪ a symbol shaped like a pointing hand, used to draw attention to a note.

   verb

   • 1. record (names, subjects, etc.) in an index: "the list indexes theses under regional headings"
   • ▪ provide an index to: "data sets are indexed by subject"
   • 2. link the value of (prices, wages, or other payments) automatically to the value of a price index: "legislation indexing wages to prices"
   • 3. (of a machine or part of one) rotate or otherwise move from one predetermined position to another in order to carry out a sequence of operations: "the pins are retracted and indexed to occupy an adjacent slotted position"

   Word Origin late Middle English: from Latin index, indic- ‘forefinger, informer, sign’, from in- ‘towards’ + a second element related to dicere ‘say’ or dicare ‘make known’; compare with indicate. The original sense ‘index finger’ (with which one points), came to mean ‘pointer’ (late 16th century), and figuratively something that serves to point to a fact or conclusion; hence a list of topics in a book (‘pointing’ to their location).

   Derivatives

   • 1. indexable adjective
   • 2. indexation noun
   • 3. indexer noun
   • 4. indexible adjective

   Scrabble Points: 13

   • I

     1

   • N

     1

   • D

     2

   • E

     1

   • X

     8

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2. dictionary.cambridge.org › dictionary › learner-englishINDEX | meaning - Cambridge Learner's Dictionary

   dictionary.cambridge.org › dictionary › learner-english

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   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. index noun [C] (INFORMATION) a collection of information stored on a computer or on cards in alphabetical order. index noun [C] (SYSTEM)

3. www.thefreedictionary.com › indexIndex - definition of index by The Free Dictionary

   www.thefreedictionary.com › index

   • Cached

   Index - definition of index by The Free Dictionary. index. Also found in: Thesaurus, Medical, Legal, Financial, Acronyms, Encyclopedia, Wikipedia. Related to index: UV index. in·dex. (ĭn′dĕks′) n. pl. in·dex·es or in·di·ces (-dĭ-sēz′) 1. Something that serves to guide, point out, or otherwise facilitate reference, especially: a.

4. www.yourdictionary.com › indexIndex Definition & Meaning | YourDictionary

   www.yourdictionary.com › index

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   Index definition: Something that serves to guide, point out, or otherwise facilitate reference, especially:. Dictionary Thesaurus

5. www.oxfordlearnersdictionaries.com › definition › englishindex noun - Definition, pictures, pronunciation and usage ...

   www.oxfordlearnersdictionaries.com › definition › english

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   Definition of index noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

6. www.collinsdictionary.com › dictionary › englishINDEX definition and meaning | Collins English Dictionary

   www.collinsdictionary.com › dictionary › english

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   4 days ago · An index is a system by which changes in the value of something and the rate at which it changes can be recorded, measured, or interpreted . ...the U.K. retail price index. ...economic indices. 2. countable noun. An index is an alphabetical list that is printed at the back of a book and tells you on which pages important topics are referred to.

7. www.dictionary.com › browse › indexesINDEX Definition & Usage Examples | Dictionary.com

   www.dictionary.com › browse › indexes

   • Cached

   a sequential arrangement of material, especially in alphabetical or numerical order. something used or serving to point out; a sign, token, or indication: a true index of his character. something that directs attention to some fact, condition, etc.; a guiding principle. a pointer or indicator in a scientific instrument.

8. www.britannica.com › dictionary › indexIndex Definition & Meaning | Britannica Dictionary

   www.britannica.com › dictionary › index

   • Cached

   : a sign or number that shows how something is changing or performing. The price of goods is an index [= indication] of business conditions. : a number that indicates changes in the level of something (such as a stock market) when it rises or falls. a stock index. certain economic indexes/indices.