1
: one that estimates
2
: estimate sense 1b
also : a statistical function whose value for a sample furnishes an estimate of a population parameter

Examples of estimator in a Sentence

Recent Examples on the Web
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The owner is the brand, the estimator, the closer, the quality control and the key relationship. Becca Longmire, PEOPLE, 19 Jan. 2026 Here’s how the IRS tax withholding estimator can help — and who should use it, according to experts. Kate Dore, Cfp®, Ea, CNBC, 29 Apr. 2026 Most major insurers use third-party estimator tools to determine the upper limit. Bloomberg, Mercury News, 16 Jan. 2026 RepairPal’s estimator also uses industry data on parts and labor to show common repair costs. Quinn Clark, jsonline.com, 3 Mar. 2026 See All Example Sentences for estimator

Word History

First Known Use

1611, in the meaning defined at sense 1

Time Traveler
The first known use of estimator was in 1611

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Cite this Entry

“Estimator.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/estimator. Accessed 7 Jul. 2026.

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