im·​prove·​ment | \ im-ˈprüv-mənt How to pronounce improvement (audio) \

Definition of improvement

1 : the act or process of improving
2a : the state of being improved especially : enhanced value or excellence
b : an instance of such improvement : something that enhances value or excellence

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Synonyms & Antonyms for improvement


advance, advancement, breakthrough, enhancement, refinement



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Examples of improvement in a Sentence

Doctors were amazed by the sudden improvement in her medical condition. I've noticed a significant improvement in your work since the spring. The editor made some improvements to the article before it was printed. They spent the money on new kitchen cabinets and other home improvements.
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Recent Examples on the Web

But major improvement is needed, otherwise Pierre-Emerick Aubameyang will be having another field day., "Aston Villa 0-0 West Ham: Report, Ratings & Reaction as Teams Play Out Bore Draw," 16 Sep. 2019 In addition to the HUD standards, which underwent two revisions in the 90s, other improvements are making newer homes and parks more fire safe than ever before. Washington Post, "Fire can be risky, deadly drawback of living in mobile homes," 16 Sep. 2019 Sony Michel finished with 21 carries for 85 yards and the game’s first touchdown, a major improvement over his 15-carry, 14-yard performance against the Steelers, not that anyone should have been concerned about that., "Just thinking: Hapless Dolphins had no chance against Patriots," 16 Sep. 2019 The iPhone 11 looks largely the same as its predecessors, with functional improvements such as longer battery life and more cameras. Clare Duffy, CNN, "Demand for the new iPhone 11 appears to be off to a good start," 16 Sep. 2019 The plan also suggests improvements to street safety and sustainability initiatives. Jamie Giellis, The Denver Post, "Jamie Giellis: As Denver asks residents near East Colfax to accept more density, residents should ask more of the city," 15 Sep. 2019 Overall box office is down 5.7 percent to date, according to Comscore, a nice improvement following a slow summer. Maureen Lee Lenker,, "Hustlers earns Jennifer Lopez a career high opening with $33.2 million debut," 15 Sep. 2019 The areas of accomplishments include water management and stormwater runoff improvements. Laura Groch, San Diego Union-Tribune, "How they voted, Sept. 15," 15 Sep. 2019 The improvement in 2018 owed a lot to surging inflation, which cut the cost of public pensions indexed to price increases in 2017. The Economist, "Were Mauricio Macri’s mainstream policies doomed from the start?," 14 Sep. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'improvement.' 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 improvement

circa 1550, in the meaning defined at sense 1

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Statistics for improvement

Last Updated

19 Sep 2019

Look-up Popularity

Time Traveler for improvement

The first known use of improvement was circa 1550

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More Definitions for improvement



English Language Learners Definition of improvement

: the act of improving something : the act or process of making something better
: the quality of being better than before
: an addition or change that makes something better or more valuable


im·​prove·​ment | \ im-ˈprüv-mənt How to pronounce improvement (audio) \

Kids Definition of improvement

1 : the act or process of making something better His cooking needs improvement.
2 : increased value or excellence I've noticed improvement in your work.
3 : an addition or change that makes something better or more valuable We made improvements to our house.



Legal Definition of improvement

: a usually permanent addition to or modification of real property that enhances its capital value and is distinguished from an ordinary repair in being designed to make the property more useful or valuable

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Comments on improvement

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


formidable, illustrious, or eminent

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