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
  • While the ban lasted only three weeks, both the number of weekly visits to the needle exchange and the number of naloxone kits distributed were lower than expected for at least the 20 weeks after the ban was overturned.
    — Paul Christine, The Conversation, 25 Aug. 2026
  • Simply encouraging students to put away their phones or teaching them better sleep habits wouldn’t move the needle either.
    — Théoden Janes, Charlotte Observer, 25 Aug. 2026
Definition of needle
Verb
  • The singer recorded her appearance on the show earlier this month, only hours before being hospitalized for appendicitis.
    — Emily Zemler, Rolling Stone, 27 Aug. 2026
  • Chase Lloyd recorded two interceptions last year, while Ah’Mare Lee finished with an interception and 12 passes defended.
    — John Devine, The Orlando Sentinel, 27 Aug. 2026
Definition of record
Verb
  • Kanter Freedom and White have declared their intention to enter next year’s draft, but the WNBA has not publicly addressed their eligibility.
    — Doug Feinberg, Chicago Tribune, 25 Aug. 2026
  • With his famous quarterbacking last name and a five-star rating as a recruit, Manning entered 2025 with sky-high expectations.
    — Dan Santaromita, New York Times, 25 Aug. 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
  • Hackett's suit, filed by civil rights attorney Ben Crump, seeks compensatory and punitive damages and names Arellano in his individual capacity as the sole defendant.
    — Daniel McFadin, Arkansas Online, 31 Aug. 2026
  • The Buckeye Institute – along with a number of other conservative groups that have filed supportive briefs – want the justices to also revisit a 2005 decision that affirmed a broad interpretation of Congress’s power to regulate interstate commerce.
    — Maureen Groppe, USA Today, 30 Aug. 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 1 Sep. 2026.

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More from Merriam-Webster on index

Britannica.com: Encyclopedia article about index

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