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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. www.merriam-webster.com · dictionary · indexIndex Definition & Meaning - Merriam-Webster

   www.merriam-webster.com · dictionary · index

   

   Learn the various meanings and uses of the word index, from a list of items or numbers to a device or symbol. See synonyms, examples, word history, and related phrases of index.

3. People also ask

   What does index mean in economics?

   • 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. 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.

   INDEX definition and meaning | Collins English Dictionary

   www.collinsdictionary.com/dictionary/english/index

   See all results for this question

   What does indexed mean?

   • [VERB noun] If a quantity or value is indexed to another, a system is arranged so that it increases or decreases whenever the other one increases or decreases. If one thing is an index of another, it indicates what the other thing will be like. Weeds are an index to the character of the soil.

   INDEX definition and meaning | Collins English Dictionary

   www.collinsdictionary.com/dictionary/english/index

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   What does index mean in math?

   • In mathematics, indices are the little numbers that show how many times you must multiply a number by itself. In the equation 3² = 9, the number 2 is an index. 7. See also card index Collins COBUILD Advanced Learner’s Dictionary. Copyright © HarperCollins Publishers 1. 2. See thumb index 4. 5. b. 7. 8. 9. Also called: fist 11. 12. 13. 14. 15.

   INDEX definition and meaning | Collins English Dictionary

   www.collinsdictionary.com/dictionary/english/index

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4. www.dictionary.com · browse · indexINDEX Definition & Meaning | Dictionary.com

   www.dictionary.com · browse · index

   

   a reference table that contains the keys or references needed to address data items. the part of a search engine where website addresses are cataloged with their associated keywords in order to quickly retrieve the most relevant web pages when a user submits a search query. Also called fist, hand.

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6. dictionary.cambridge.org · dictionary · englishINDEX | English meaning - Cambridge Dictionary

   dictionary.cambridge.org · dictionary · english

   

   Learn the meaning of index as a noun and a verb in English, with different contexts and usage. Find out how to use index in lists, comparisons, finance, and business.

7. www.thefreedictionary.com · indexIndex - definition of index by The Free Dictionary

   www.thefreedictionary.com · index

   

   Index is a word with multiple meanings and uses in different fields, such as printing, mathematics, statistics, and computing. Learn the definition, synonyms, and examples of index from various sources and dictionaries.

8. www.oxfordlearnersdictionaries.com · definitionindex noun - Definition, pictures, pronunciation and usage ...

   www.oxfordlearnersdictionaries.com · definition

   

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

9. www.collinsdictionary.com · dictionary · englishINDEX definition and meaning | Collins English Dictionary

   www.collinsdictionary.com · dictionary · english

   

   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. There's even a special subject index. If you index a book or a collection of information, you make an alphabetical list of the items in it. Painters and sculptors are indexed separately.

10. www.yourdictionary.com · indexIndex Definition & Meaning - YourDictionary

    www.yourdictionary.com · index

    

    Learn the various meanings and uses of the word index, from a noun to a verb to a pronoun. Find synonyms, antonyms, examples, and related words for index.