index number


: a number used to indicate change in magnitude (as of cost or price) as compared with the magnitude at some specified time usually taken as 100

Example Sentences

Recent Examples on the Web On the other hand, South Carolina’s Comporium almost doubled its index number and dropped to 10th place. PCMAG, 19 Dec. 2022 These sequences are assigned the same barcode index number, or BIN. Brooke Jarvis, WIRED, 10 Nov. 2022 That means some of these ISPs have a speed index number that includes, say, fiber and DSL together. Eric Griffith, PCMAG, 17 June 2022 Starting in December 2003, the biggest December-to-December increase in that inflation index number prior to the most recent one was 4.1% in December 2007, according to the federal Bureau of Labor Statistics. John Byrne, Chicago Tribune, 17 July 2022 Its index number is down, but not enough for anyone else from Washington to New England to beat it. Eric Griffith, PCMAG, 17 June 2022 April’s affordability index number represents an 18% increase from last year’s, according to the company. Colin Lodewick, Fortune, 7 June 2022 Mississippi places most poorly in this system, with an index number of 100 based on a high percentage of uninsured drivers and high fatality rate. Kaitlyn Bancroft, The Salt Lake Tribune, 14 Apr. 2022 Residents can look up their property through their property index number or address and pay their current tax bill online at Michelle Mullins,, 13 Aug. 2021 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'index number.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Word History

First Known Use

1875, in the meaning defined above

Time Traveler
The first known use of index number was in 1875

Dictionary Entries Near index number

Cite this Entry

“Index number.” Dictionary, Merriam-Webster, Accessed 4 Feb. 2023.

Last Updated: - Updated example sentences
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