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Synonyms

improvement

American  
[im-proov-muhnt] / ɪmˈpruv mənt /

noun

  1. an act of improving or the state of being improved.

  2. a change or addition by which a thing is improved.

  3. a person or thing that represents an advance on another in excellence or achievement.

    The new landlord is a great improvement over his greedy predecessor.

    Synonyms:
    advancement, betterment, refinement
  4. a bringing into a more valuable or desirable condition, as of land or real property; betterment.

    Synonyms:
    repair, enhancement
  5. something done or added to real property that increases its value.

  6. profitable use, as of a period of time.


improvement British  
/ ɪmˈpruːvmənt /

noun

  1. the act of improving or the state of being improved

  2. something that improves, esp an addition or alteration

  3. alteration of the structure, fixtures, fittings, or decor of a building without changing its function Compare conversion

  4. (usually plural) a building or other works on a piece of land, adding to its value

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • nonimprovement noun
  • preimprovement noun

Etymology

Origin of improvement

First recorded in 1400–50; late Middle English improuement, from Anglo-French emprouement “something profitable (especially exploitation of land)”; see improve, -ment

Explanation

When there's improvement, something is getting better. Going from a C to an A in math is an improvement. If you want to improve something, you've got to make improvements. Lots of people strive for personal improvement: maybe it's losing a few pounds for an improvement in their appearance, or reading more for an improvement in intelligence. Businesses look for improvement in customer service or profitability. Any change for the better or step in the right direction is an improvement.

Keep Reading on Vocabulary.com

Vocabulary lists containing improvement

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Intel also sported gross-margin improvement, with a 41% adjusted margin in the period versus 36.7% in the fourth quarter.

From MarketWatch • Apr. 23, 2026

One school reported worsening behavior and less improvement in English and math for Star Academy students than for other kids.

From The Wall Street Journal • Apr. 23, 2026

As a result, he stressed that he wanted overall NHS waiting list numbers to fall more quickly for women, while also seeing an improvement in access to women's health services.

From BBC • Apr. 23, 2026

“This improvement, coupled with a pickup in purchase applications and refinance activity, as well as an increase in monthly pending home sales, underscores signs of improving momentum in the market,” Khater said.

From MarketWatch • Apr. 23, 2026

Although his sweet-smelling breath was an improvement over burped-tuna-flavored funk, my nose still wrinkled.

From "Sir Fig Newton and the Science of Persistence" by Sonja Thomas