es·​ti·​ma·​tion | \ ˌe-stə-ˈmā-shən How to pronounce estimation (audio) \

Definition of estimation

1 : judgment, opinion a poor choice in my estimation
2a : the act of estimating something
b : the value, amount, or size arrived at in an estimate
3 : esteem, honor

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Examples of estimation in a Sentence

This is not, in my estimation, an efficient use of our resources. She went down in her supporters' estimation after she voted against the plan. Planning the project requires careful cost estimation.
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Recent Examples on the Web

She called, by her estimation, almost 60 new players into various training camps. Andrew Keh, New York Times, "For U.S. and Its Coach, a Low-Key Start to a High-Stakes Month," 11 June 2019 In his estimation, officials are only able to stop up to 70 percent of the poaching. Stefan Lovgren, National Geographic, "River sanctuaries help giant fish recover in Southeast Asia," 25 Apr. 2019 But in my estimation, what makes this chicken so good is a number of things. Michael Ruhlman, New York Times, "If It’s Sunday in Southeastern Indiana, Order the Fried Chicken," 18 June 2019 Can principled methods of risk estimation be applied here? Quanta Magazine, "Solution: ‘When Probability Meets Real Life’," 2 Mar. 2018 One of the problems with optimal surgery estimations is how personalized each mutation is. Darlena Cunha, Washington Post, "I have the scary cancer mutation. When should I have my breasts removed?," 18 Mar. 2018 The $78,000 sticker price puts the electric sedan beyond the reach of many consumers and, by Musk's own estimations, brings it closer to the realm of luxury cars. Bloomberg,, "Elon Musk announces $78,000 version of Tesla Model 3 — unaffordable for the masses," 21 May 2018 The cream example is quite simple and not very critical, so estimation is a reasonable solution, without any deep math. Eugenia Cheng, WSJ, "Extra-Fatty Cream by the Numbers," 17 Jan. 2019 But Paul’s estimation of Trump must have changed radically since then, just as his sense of Pompeo changed radically since this morning. Eric Levitz, Daily Intelligencer, "Rand Paul Will Vote to Confirm Pompeo, His Own Fraudulence," 23 Apr. 2018

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

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First Known Use of estimation

14th century, in the meaning defined at sense 1

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Statistics for estimation

Last Updated

10 Jul 2019

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Time Traveler for estimation

The first known use of estimation was in the 14th century

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English Language Learners Definition of estimation

formal : a judgment or opinion about something
: the act of judging the size, amount, cost, etc., of something : the act of estimating something
: a guess about the size, amount, cost, etc., of something


es·​ti·​ma·​tion | \ ˌe-stə-ˈmā-shən How to pronounce estimation (audio) \

Kids Definition of estimation

1 : the act of making a judgment especially of value, size, or cost an estimation of expenses

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Comments on estimation

What made you want to look up estimation? Please tell us where you read or heard it (including the quote, if possible).


something desired as essential

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