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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In the same time, the consumer price index for renters in the region rose 80%, and the housing price index jumped 140%, according to a Dallas Morning News analysis of federal housing data. Alison Saldanha, Dallas Morning News, 29 Jan. 2026 Roth recommends that every investor own bonds and, in particular, Treasury Inflation Protected Securities, or TIPS, whose payouts fluctuate with the consumer price index to stay ahead of inflation. Jeff John Roberts, Fortune, 29 Jan. 2026 Costs for everyday purchases have jumped more than 25% since January 2020, according to the consumer price index. Sarah Agostino, CNBC, 27 Jan. 2026 According to the United States Bureau of Labor Statistics, consumer price index is a measure of the average change over time in prices paid for goods and services. Abigail Hasebroock, Sun Sentinel, 23 Jan. 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 4 Feb. 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

More from Merriam-Webster on consumer price index

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