Synonyms of index

index 1 of 2

noun

ˈin-ˌdeks 

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

• indicator
• needle
• gauge
• hand
• pointer
• dial
• face

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

• list
• record
• enter
• catalog
• file
• schedule
• register
• slate
• book
• enroll
• card
• compile
• inscribe
• classify
• put down
• note
• tabulate
• tally
• reschedule

Antonyms & Near Antonyms

• delete

Example Sentences

Recent Examples of index

Noun

To prevent it, your team needs to use such techniques as population stability index and shadow traffic comparison. — Klaudia Zaika, Forbes.com, 16 Oct. 2026

The index has reflected the stronger pricing power the trucking industry has wielded throughout 2026. — Glenn Taylor, Footwear News, 16 Oct. 2026

Verb

Households with the highest incomes would see the greatest benefit from indexing capital gains to inflation. — Darla Mercado, Cfp®, CNBC, 15 Sep. 2026

Interestingly, IDScan’s breach notification page doesn’t appear in major search results because the company added code to the site to prevent web crawlers from indexing it. — Michael Kan, PC Magazine, 10 Sep. 2026

Video

The True Story of the Backward Index

There it sits, hidden in plain view on a set of shelves in the basement of the Merriam-Webster offices: the Backward Index. But why would anyone type out 315,000 words spelled in reverse?