consumer price index

noun

: an index measuring the change in the cost of typical wage-earner purchases of goods and services expressed as a percentage of the cost of these same goods and services in some base period
abbreviation CPI

called also cost-of-living index

Examples of consumer price index in a Sentence

Recent Examples on the Web
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Next week will bring some major inflation data, most importantly the March reading of the consumer price index on Friday. Sarah Min, CNBC, 3 Apr. 2026 The consumer price index for all urban consumers increased 2.4% in February from a year earlier, while pet services — including veterinary care — jumped 5.1%, according to data from the Bureau of Labor Statistics. Emily Forgash, Fortune, 22 Mar. 2026 Indeed, the promising consumer price index print that found both headline and core inflation were at five-year lows in February was based on data from just before President Donald Trump initiated his incursion into Iran. Tiana Lowe Doescher, The Washington Examiner, 20 Mar. 2026 The report assumed the consumer price index at about 3% and looked at what the tradeoffs would be. Andrea Nakano, CBS News, 19 Mar. 2026 See All Example Sentences for consumer price index

Word History

First Known Use

1945, in the meaning defined above

Time Traveler
The first known use of consumer price index was in 1945

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Cite this Entry

“Consumer price index.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/consumer%20price%20index. Accessed 5 Apr. 2026.

Legal Definition

consumer price index

noun
consumer price in·​dex
: an index measuring the change in the cost of typical wage-earner purchases of goods and services in some base period

called also cost-of-living index

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