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
Local officials reported to the National Weather Service the man had been exposed to extreme heat over multiple days, with the heat index over 100. — Karissa Waddick, USA Today, 5 July 2026 Global stock indexes followed, and strong earnings from Micron weren’t enough to revive confidence. — Jason Ma, Fortune, 5 July 2026
Verb
Writers catalogue these fictional phenomena — which range from the terrifying to the downright bizarre — in the form of fake records, studies, research documents, and logs, all of which are indexed in a sprawling archive. — Maggie Harrison Dupré, Futurism, 18 June 2026 The study also found that the more advanced group over-indexed on senior leadership sponsorship, training and change management, and data preparation and labeling—all by at least 10 percentage points. — John Kell, Fortune, 17 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
  • According to PetSafe, the earliest indicators include heavy or rapid panting, excessive thirst, seeking out shade, lagging behind on walks and gums that appear darker or brighter pink than usual.
    — Ryan Brennan, Miami Herald, 13 July 2026
  • Humans thrive in natural settings, and being among trees improves multiple health indicators.
    — Hanna Wickes, Kansas City Star, 13 July 2026
Definition of indicator
Verb
  • The Mets were one of the last teams Wiggins, who is listed at 6 feet 5 and 215 pounds, met with at the draft combine.
    — Will Sammon, New York Times, 12 July 2026
  • Diode’s website does not list the Henderson County data center under the company’s current projects.
    — Matthew Adams, Fort Worth Star-Telegram, 11 July 2026
Definition of list
Noun
  • To highly competitive people, the individuals with massive egos and resumes that don’t fit on one page, legacy is the word that moves the needle.
    — Omar Kelly, Miami Herald, 14 July 2026
  • Many popular houseplants contain insoluble calcium oxalate crystals, tiny needle-like structures found in their leaves and stems.
    — Ryan Brennan, Fort Worth Star-Telegram, 14 July 2026
Definition of needle
Verb
  • The numbers are consistent with the depressed transit levels recorded over recent days since negotiations fell apart.
    — Sophia Saifi, CNN Money, 16 July 2026
  • Hugo Gonzalez recorded a double-double with 24 points, 10 rebounds and five assists for the Celtics (3-1).
    — Jason Anderson, Sacbee.com, 16 July 2026
Definition of record
Verb
  • The suspect entered a Wells Fargo Bank branch and demanded money from a bank employee.
    — Sofia Saric, Miami Herald, 15 July 2026
  • The new jet in question, a present from Qatar that the administration spent $400 million to retrofit and upgrade, entered service last week.
    — ABC News, ABC News, 14 July 2026
Definition of enter
Verb
  • This is not a Uranian satellite, but a background star cataloged as HIP 19146.
    — Joe Rao, Space.com, 3 July 2026
  • Product catalogs need to be portable and machine-readable so an AI agent can resolve a SKU in seconds.
    — Faustino Júnior, Forbes.com, 2 July 2026
Definition of catalog
Verb
  • Now a union spokesperson says employees might file a complaint with a state board intended to protect public employees.
    — Corey Schmidt, Sacbee.com, 15 July 2026
  • Frevola and Cutbirth have filed a separate lawsuit against the Florida House over its handling of the investigations, alleging that the investigative reports left out key details.
    — Claire Heddles, Miami Herald, 15 July 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 16 Jul. 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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