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 The Bay Area native was on his team, and Huang noticed that the youngster was, in his estimation, playing the right way. David Fear, Rolling Stone, "Eddie Huang’s ‘Boogie’ Wonderland," 24 Mar. 2021 In my estimation, this is realism — and non-slander of one’s own country. Jay Nordlinger, National Review, "‘Patriot’ games, &c.," 19 Mar. 2021 Nøttestad, too, thought that ICES’s stock estimation in 2019 was too low. Regin Winther Poulsen, The Atlantic, "The Rules for Dividing the Ocean’s Riches Are Breaking," 13 Feb. 2021 Here is our estimation based on that listing, game usage, interviews and other intel. Nathan Baird, cleveland, "What is Ohio State’s depth chart against Alabama in the College Football Playoff national championship game?," 11 Jan. 2021 By our estimation, there are at least 50 great movie performances from the last 25 years that were nominated for a Golden Globe but did not go on to an Oscar nomination. Joe Reid, Vulture, "The Golden Globe–Nominated Movie Performances That Oscar Ignored, Ranked," 22 Feb. 2021 He was reportedly amused by his estimation, and no one took it seriously at the time. Clara Moskowitz, Scientific American, "The Cosmological Constant Is Physics’ Most Embarrassing Problem," 1 Feb. 2021 To put that into perspective, playing through Control could eat up approximately 110GB of data going by's estimation of an 11.5-hour runtime. Courtney Linder, Popular Mechanics, "Everything You Need to Know About Amazon Luna," 26 Jan. 2021 Notice that this estimation assumes that the mass of the plane doesn't matter. Rhett Allain, Wired, "How Long Would It Take for a 747 to Stop, Like in Tenet?," 9 Jan. 2021

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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Time Traveler for estimation

Time Traveler

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

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Statistics for estimation

Last Updated

28 Mar 2021

Cite this Entry

“Estimation.” Dictionary, Merriam-Webster, Accessed 10 Apr. 2021.

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More Definitions for estimation



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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