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
At a broader level of exposure, winning trades include the energy sector index fund, State Street Energy Select Sector SPDR ETF (XLE), as well as crude oil refining trades, such as the VanEck Oil Refiners ETF (CRAK). — Hillary Jackson, CNBC, 2 Aug. 2026 South Korea’s Kospi index, which has been a bellwether for global stocks lately, soared 18% on Friday, marking its biggest single-day jump on record. — Jason Ma, Fortune, 2 Aug. 2026
Verb
Once stamped and indexed, the deed appears legitimate and can easily trick desperate buyers, investors, financial institutions and even police officers, lawyers and judges. — Donovan McCarty, The Conversation, 22 June 2026 Transit fares aren’t being indexed to inflation. — The Editorial Board, Chicago Tribune, 19 June 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 five-foot shark is far more common in warmer, southern waters such as the Caribbean Sea, and scientists said its appearance off Falmouth, Massachusetts, is an indicator of warming seas caused by climate change.
    — ABC News, ABC News, 3 Aug. 2026
  • The momentum indicator has reset from overbought but has not collapsed.
    — Josh Brown,Sean Russo, CNBC, 3 Aug. 2026
Definition of indicator
Verb
  • And the trains did not arrive at the times listed on the signs in the stations.
    — Doug Turnbull, AJC.com, 2 Aug. 2026
  • Commercial properties that are actively being listed for sale would be temporarily exempt as well, among other revisions.
    — Chris Higgins, Kansas City Star, 1 Aug. 2026
Definition of list
Noun
  • My needle stayed in the red—my feet were too dry, potential friction.
    — Paige Williams, New Yorker, 3 Aug. 2026
  • The Jays hope to thread the needle with their moves, league sources said, but that was the plan even before this recent winning stretch.
    — Ken Rosenthal, New York Times, 2 Aug. 2026
Definition of needle
Verb
  • Didier Gaspard Owen Maximilien, 19, admitted to licking the straw and returning it to the vending machine while recording the act for his online followers.
    — CNN Money, CNN Money, 30 July 2026
  • Goalkeeper Sandy MacIver made four saves and recorded her eighth clean sheet of the season for the Spirit (11-3-3).
    — ABC News, ABC News, 30 July 2026
Definition of record
Verb
  • Rodriguez returns after a 15-month layoff and hand surgery, aiming to re-enter the title picture against Silva, who seeks a second win this year to secure a title shot.
    — Brian Mazique, Forbes.com, 5 Aug. 2026
  • Hamilton entered the race largely considered the frontrunner, despite only launching his campaign in April.
    — ABC NEWS, ABC News, 5 Aug. 2026
Definition of enter
Verb
  • With the Vietnam War raging in Southeast Asia and televised on the nightly news, Major Matt Mason blasted into Sears and JCPenney catalogs when soldier action figures were losing their appeal.
    — Jeff Spry, Space.com, 1 Aug. 2026
  • DeepMind researchers catalogued dozens of examples in 2020 of systems satisfying the literal objective while defeating its purpose.
    — Ashish Bhatia, Forbes.com, 1 Aug. 2026
Definition of catalog
Verb
  • Investigators presented the case to the Los Angeles County District Attorney's Office earlier Tuesday for filing consideration.
    — Meredith Deliso, ABC News, 5 Aug. 2026
  • All four of her grandparents were born and raised in Italy; in 2018, the then 62-year-old former magazine editor moved to Perugia, in the central Umbria region, on a temporary visa at the same time as filing a lawsuit for citizenship.
    — Julia Buckley, CNN Money, 4 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 5 Aug. 2026.

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More from Merriam-Webster on index

Nglish: Translation of index for Spanish Speakers

Britannica.com: Encyclopedia article about index

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