index 1 of 2

noun

ˈin-ˌdeks How to pronounce index (audio)
Definition of indexnext
as in indicator
an arrow-shaped piece on a dial or scale for registering information the index on the thermometer dropped below zero

Synonyms & Similar Words

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index

2 of 2

verb

as in to list
to put (someone or something) on a list indexed all the books in the library by category

Synonyms & Similar Words

Antonyms & Near Antonyms

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of index
Noun
When the heat index is over 100 degrees, the situation becomes more dangerous and serious medical conditions are more likely to develop. — Dale Denwalt, Oklahoman, 29 Aug. 2026 The Conference Board’s consumer confidence index and the University of Michigan’s measure of consumer sentiment both fell in August. — Rachel Barber, USA Today, 28 Aug. 2026
Verb
OpenAI faced a similar controversy last year when Google indexed shared user chats on ChatGPT that had been created with the public link function. — Michael Kan, PC Magazine, 28 July 2026 The Social Security Administration calculates your retirement benefits by reviewing your lifetime earnings and indexing your highest 35 years of earnings to wage growth to produce an Average Indexed Monthly Earnings (AIME). — Brian Sloan, CNBC, 21 July 2026 See All Example Sentences for index
Recent Examples of Synonyms for index
  1. indicator
  2. list
  3. needle
  4. record
  5. enter
  6. catalog
  7. file
Noun
  • The indicator was almost certainly deep into overbought territory during the May surge.
    — Josh Brown,Sean Russo, CNBC, 31 Aug. 2026
  • Running out of cash on hand is the clearest indicator that a college is at high risk of closure, Kelchen added, while consistent operating losses, enrollment declines, and large withdrawals from endowments can also signal distress.
    — Tatiana Sataua, Fortune, 31 Aug. 2026
Definition of indicator
Verb
  • There isn’t room on a roster to list all the positions where North Chicago senior Amari Earl could play in a single game.
    — Steve Reaven, Chicago Tribune, 29 Aug. 2026
  • Omarr Norman-Lott is listed below, beginning the season on the Physically Unable to Perform (PUP) list.
    — Kansas City Star, Kansas City Star, 29 Aug. 2026
Definition of list
Noun
  • Those concerns have already moved the needle, but the long-term growth runway is still in the early stages.
    — Samantha Subin, CNBC, 1 Sep. 2026
  • Show The Imperfect Moments The change that truly moved the needle was pointing the camera at the moments that were not perfect.
    — Expert Panel®, Forbes.com, 1 Sep. 2026
Definition of needle
Verb
  • Gravest Gravy, an album consisting of a dozen previously unheard tracks that were recorded in 1977, with Big Star’s Alex Chilton producing, captures the band’s pioneering psychobilly sound at its birth.
    — The Week US, TheWeek, 2 Sep. 2026
  • In great Coppola family tradition, the late Eleanor Coppola was behind the scenes, recording her own video diaries that would become Making Marie Antoinette.
    — Fran Hoepfner, Vulture, 2 Sep. 2026
Definition of record
Verb
  • Officials added that people cannot become infected with Naegleria fowleri by swallowing contaminated water; however, the amoeba can enter the body when it is forcefully introduced, such as through the nose into the brain.
    — Angel Saunders, PEOPLE, 2 Sep. 2026
  • For San Francisco, a comeback of epic proportions — the club was down 11-5 entering the fourth inning — was for naught.
    — Johnny Flores Jr, New York Times, 2 Sep. 2026
Definition of enter
Verb
  • The search for Earth twins Since the 1990s, scientists have cataloged more than 6,300 worlds orbiting stars other than our sun.
    — Noah Haggerty, Los Angeles Times, 28 Aug. 2026
  • Morris’s book focuses only on the representation of real animals; cataloguing mythic and hybrid creatures would take another volume entirely.
    — Kelly Presutti, ARTnews.com, 28 Aug. 2026
Definition of catalog
Verb
  • Thirteen days before Morissette’s lawsuit, Urinov filed her own claim against the singer in London’s King Bench Division, which handles cases of defamation, misuse of private information, data protection, and harassment by publication.
    — Kathleen Perricone, Entertainment Weekly, 2 Sep. 2026
  • Woods’ attorney, Douglas Duncan, filed a document with Martin County Court on Tuesday calling for a change of plea hearing on Wednesday in front of Judge Darren Steele.
    — Bob Harkins, New York Times, 2 Sep. 2026
Definition of file

Browse Nearby Words

indeterminations
index
indexed
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Cite this Entry

“Index.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/index. Accessed 4 Sep. 2026.

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Britannica.com: Encyclopedia article about index

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