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IELTS BNC: 1793 COCA: 2621

index
1 index /ˈɪnˌdɛks/ noun
plural indexes or indices /ˈɪndəˌsiːz/
1 index
/ˈɪnˌdɛks/
noun
plural indexes or indices /ˈɪndəˌsiːz/
Learner's definition of INDEX
[count]
1 
plural usually indexes : an ordered list序列: such as
a  : an alphabetical list at the end of a book that shows the page where each thing in the list can be found（书后）索引
b  : a group of related things that are in alphabetical or numerical order索引
2 
: a sign or number that shows how something is changing or performing指数；标志
: a number that indicates changes in the level of something (such as a stock market) when it rises or falls指数
— see also consumer price index, retail price index
3 
: a device used to point to something (such as a number)指针
2 index /ˈɪnˌdɛks/ verb
indexes; indexed; indexing
2 index
/ˈɪnˌdɛks/
verb
indexes; indexed; indexing
Learner's definition of INDEX
[+ object]
1 
: to provide an index for (something, such as a book)给（书等）做索引 — usually used as (be) indexed通常用作(be) indexed
2 
: to list or include (something) in an index把…列入索引
— often used as (be) indexed常用作(be) indexed
3 
: to link wages, benefits, etc., to a measurement of changes in the price of goods and services so that they increase at the same rate与…挂钩 — usually used as (be) indexed to通常用作(be) indexed to
IELTS BNC: 1793 COCA: 2621

index

1 of 2

noun

in·​dex ˈin-ˌdeks How to pronounce index (audio)
plural indexes or indices ˈin-də-ˌsēz How to pronounce index (audio)
1
: a list (as of bibliographical information or citations to a body of literature) arranged usually in alphabetical order of some specified datum (such as author, subject, or keyword): such as
a
: a list of items (such as topics or names) treated in a printed work that gives for each item the page number where it may be found
b
: a list of publicly traded companies and their stock prices
c
: a bibliographical analysis of groups of publications that is usually published periodically
d
: thumb index
2
a
: a number (such as a ratio) derived from a series of observations and used as an indicator or measure
specifically : index number
b
: the ratio of one dimension of a thing (such as an anatomical structure) to another dimension
3
a
: a device (such as the pointer on a scale or the gnomon of a sundial) that serves to indicate a value or quantity
b
: something (such as a physical feature or a mode of expression) that leads one to a particular fact or conclusion : indication
4
plural usually indices : a number or symbol or expression (such as an exponent) associated with another to indicate a mathematical operation to be performed or to indicate use or position in an arrangement
3 is the index of the expression {latex}\sqrt[3]{5}{/latex} to indicate the cube root of 5
5
: a character ☞ used to direct attention to a note or paragraph

called also fist

6
: a list of restricted or prohibited material
specifically, capitalized : a formerly published list of books the reading of which was prohibited or restricted for Roman Catholics by the church authorities

index

2 of 2

verb

indexed; indexing; indexes

transitive verb

1
a
: to provide with an index
b
: to list in an index
all persons and places mentioned are carefully indexed
2
: to serve as an index of
3
: to regulate (wages, prices, interest rates, etc.) by indexation

intransitive verb

: to index something
indexer noun

Synonyms

Noun

Verb

Example Sentences

Noun Look up the recipe for potato soup in the index. Potato soup is listed under “soup” in the index. The card catalog is an index to the materials in the library. the index on a scale Verb This search engine has indexed hundreds of millions of websites. indexed all the books in the library by category See More
Recent Examples on the Web
Noun
But the Standard & Poor’s 500 index ended the day down 1.1 percent, hurt by news that Russia would delay reopening an important gas pipeline to Europe. Larry Edelman, BostonGlobe.com, 2 Sep. 2022 Prices in the San Diego metro, which includes all of San Diego County, rose eighth-most in the 20-city index. Phillip Molnar, San Diego Union-Tribune, 30 Aug. 2022 Such a system would boost opportunities for candidates endorsed by smaller parties, and Ms. Mitsui says the countries ranking as most equal in the Global Gender Gap index have each adopted some kind of proportional representation system. Takehiko Kambayashi, The Christian Science Monitor, 23 Aug. 2022 All 30 Dow stocks were lower, and only 25 of the stocks in the blue chip S&P 500 index traded higher Monday. Julia Horowitz, CNN, 23 Aug. 2022 Some 95% of stocks in the benchmark index lost ground. CBS News, 22 Aug. 2022 Investors and traders tend to be forward-looking, and recession fears helped trigger a roughly 20% slide in the Standard & Poor’s 500 index during the first half of 2022, as investors anticipated that activity was cooling. Russ Wiles, The Arizona Republic, 31 July 2022 Stock markets rose significantly, with the Dow Jones industrial average gaining 1.4% and the broader Standard & Poor’s 500 index closing 2.6% higher. Don Lee, Los Angeles Times, 27 July 2022 The Standard & Poor's 500 index officially fell into bear market territory Monday after falling more than 20% this year from its all-time high set in January. Susan Tompor, Detroit Free Press, 15 June 2022
Verb
As the documents piled up, Posey installed floor-to-ceiling shelves in a warehouse attached to Newport Aeronautical’s office, paying people to help file and index the growing collection. WIRED, 19 Aug. 2022 This way, Google bots can categorically index such web pages. Ran Ronen, Forbes, 30 June 2022 Most states with graduated income tax rates index their income tax brackets for inflation. Patrick Gleason, Forbes, 16 June 2022 Currently, 13 states do not index their income tax brackets to inflation, mostly in the South and Mid-Atlantic regions. Adam A. Millsap, Forbes, 13 Apr. 2022 The 1940 census records were released a decade ago, but the federal government didn't transcribe and index the names. Bill Bowden, Arkansas Online, 10 Apr. 2022 Congress should ultimately index unemployment benefits nationwide, but in the short run, states must take the lead. Jonathan Ingram, WSJ, 5 Jan. 2022 The original plan was a nonstarter for too many members, but a small group of senators is working on a proposal to index the price of a select number of drugs. Lauren Fox And Phil Mattingly, CNN, 26 Oct. 2021 Republicans insisted on no change to corporate tax rates; the Biden Administration and congressional Democrats adamantly opposed proposals to index the gas tax or enact fees on electric vehicles. Susan B. Glasser, The New Yorker, 24 June 2021 See More

Word History

Etymology

Noun

Latin indic-, index, from indicare to indicate

First Known Use

Noun

1561, in the meaning defined at sense 3a

Verb

1720, in the meaning defined at transitive sense 1a

Time Traveler
The first known use of index was in 1561

Phrases Containing index

See More
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IELTS BNC: 1793 COCA: 2621
index

noun¹

 1list of names/topics名稱；主題ADJECTIVE | VERB + INDEX | INDEX + VERB | INDEX + NOUN | PREPOSITION ADJECTIVE➤complete, comprehensive完整的／綜合索引▸➤detailed詳細的索引▸➤general總索引▸➤alphabetical按字母順序排列的索引▸➤card, subject卡片式／主題索引VERB + INDEX➤appear in, be in在索引中出現；在索引中◇The topic I was interested in didn't appear in the index.我感興趣的那個題目沒收進索引。➤consult, look (sth up) in, search查閱索引；在索引中查找（⋯）◇Why don't you look up her name in the index?你為什麼不在索引裏查找她的名字呢？◇Search the index to find the address of the data file.查閱索引尋找數據文件的地址。➤compile, create, update編製／創建／更新索引INDEX + VERB➤give sth, list sth索引中給出⋯／列出⋯◇The index only gives the main towns.索引中只有主要城鎮的名稱。INDEX + NOUN➤card索引卡PREPOSITION➤in a/the index索引中◇Is there any reference to it in the index?索引中有沒有提到它？➤index to關於⋯的索引◇It's a general index to the whole work.這是整部作品的總索引。
index

noun²

 2system showing the level of sth; measure of sth指數；指標ADJECTIVE | VERB + INDEX | INDEX + VERB | PREPOSITION | PHRASES ADJECTIVE➤good, reliable, sensitive, useful不錯的／可靠的／靈敏的／有用的指標▸➤high, low高指數；低指數▸➤weighted加權指數▸➤official官方指數▸➤general綜合指數◇a general index calculated from death and population information根據死亡人數和人口信息計算出來的綜合指數➤cost-of-living, market, price生活費用／市場／價格指數◇the consumer price index (especially NAmE) 消費者價格指數◇the retail price index (BrE) 零售價格指數➤commodity, futures, share, stock, stock-market商品指數；期貨指數；股票指數；證券市場指數▸➤Dow Jones, FTSE 100, etc.道瓊斯指數、富時 100 指數等▸➤dollar, sterling, etc.美元、英鎊等指數▸➤body mass (abbreviated to BMI) , glycaemic/glycemic (abbreviated to GI) , refractive, etc.體重指數、血糖指數、屈光率等VERB + INDEX➤have擁有⋯指數◇Those who lived in the inner cities had a high index of deprivation.生活在市中心的居民貧困指數很高。➤use (sth as)（把⋯）用作指標◇The test results were used as an index of language proficiency.考試結果被用作衡量語言水平的指標。➤compile, construct, create訂立指標▸➤calculate, compute, derive計算指數▸➤provide, publish提供／發佈指數◇The price index is published monthly.價格指數每月發佈一次。➤drag, drive, push, take拉動指數；推動指數◇A wave of frenzied buying pushed the index up 136.2 points.一股搶購風潮將指數推高了 136.2 點。➤measure測算指數▸➤track跟踪指數◇Most commodity funds track a specific commodity index.多數商品基金都會跟踪某種具體的商品價格指數。INDEX + VERB➤add sth, gain sth, increase, jump, rise, surge指數增加⋯；指數上漲；指數暴漲；指數飆升◇The NYSE Financial index gained 20%.紐約證券交易所金融指數上漲了 20%。➤decline, dip, drop, fall, sink指數下跌◇The commodities index fell 3.1%.商品價格指數下降了 3.1%。➤measure sth指數衡量⋯◇an index designed to measure changes in the volume of industrial production用於衡量工業產量變化的指數➤post sth指數表現⋯◇The Morgan Stanley Cyclical index posted a small advance.摩根士丹利循環指數出現小幅上升。➤be based on sth指數以⋯為依據◇an index based on incidents causing a loss of production以導致產量下降的事件為基礎的指數➤be linked to sth指數與⋯相關◇The increase in our standard rates will be linked to the consumer price index.我們的標準價格的漲幅將與消費者價格指數掛鈎。◇index-linked pensions (BrE) 與物價指數掛鈎的養老金➤cover sth指數包括⋯◇an index covering some 1 700 companies涵蓋約 1,700 家公司的指數➤open以⋯指數開盤▸➤close, end以⋯指數收盤◇The hundred shares index closed down 15 points.百種股票綜合指數收盤時下跌了 15 點。PREPOSITION➤in an/the index在指數中◇dividends on shares in the index指數成分股的股息➤on an/the index在指數當中◇The company is listed on the Nasdaq technology stocks index.該公司被列入納斯達克科技股指數成分股。PHRASES➤a drop in an index, a fall in an index指數的下跌◇a 28.2 point drop in the FTSE 100 index富時 100 指數下跌 28.2 點➤changes in an index指數的變化➤an increase in an index指數的上升▸➤as measured by an index如指數所顯示◇Inflation, as measured by the consumer price index, is expected to drop.正如居民消費價格指數所顯示的，通貨膨脹率預期下降。  ➡ note at per cent (for more verbs)

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