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Synonyms

improve

American  
[im-proov] / ɪmˈpruv /

verb (used with object)

improved, improving
  1. to bring into a more desirable or excellent condition.

    He took vitamins to improve his health.

    Synonyms:
    emend, amend
    Antonyms:
    worsen
  2. to make (land) more useful, profitable, or valuable by enclosure, cultivation, etc.

  3. to increase the value of (real property) by betterments, as the construction of buildings and sewers.

  4. to make good use of; turn to account.

    He improved the stopover by seeing a client with offices there.


verb (used without object)

improved, improving
  1. to increase in value, excellence, etc.; become better.

    The military situation is improving.

    Antonyms:
    worsen
  2. to make improvements, as by revision, addition, or change.

    None of the younger violinists have been able to improve on his interpretation of that work.

improve British  
/ ɪmˈpruːv /

verb

  1. to make or become better in quality; ameliorate

  2. (tr) to make (buildings, land, etc) more valuable by additions or betterment

  3. (intr; usually foll by on or upon) to achieve a better standard or quality in comparison (with)

    to improve on last year's crop

"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

noun

  1. informal improving

"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

Usage

What are other ways to say improve?

To improve something is to bring it into a more desirable or excellent condition. How is improve different from the verbs ameliorate and better? Find out on Thesaurus.com. 

Other Word Forms

  • improvability noun
  • improvable adjective
  • improvableness noun
  • improvably adverb
  • improver noun
  • improvingly adverb
  • preimprove verb (used with object)
  • quasi-improved adjective
  • superimproved adjective
  • well-improved adjective

Etymology

Origin of improve

First recorded in 1425–75; late Middle English improuen, emprouen from Anglo-French emprouer “to turn (something) into profit,” derivative of phrase en prou “into profit,” equivalent to en ( en- 1 ) + prou, Old French prou, preu from Late Latin prōde (est), by reanalysis of Latin prōdest “(it) is beneficial, of use,” with prōde taken as a neuter noun ( proud ); the sound v was made by association with prove, approve

Explanation

When you improve something, you make it better. For example, you can improve your harmonica playing with practice. Be happy when you see this word, because something is getting better — improving. Getting a tutor will usually improve your grades. Sleeping well improves your health and alertness. A haircut could improve your looks. Painters have to decide whether a painting is finished or if it can still be improved. Voters decide which candidate will improve the nation. Sometimes a sick patient will mysteriously improve. The opposite of improve is worsen or deteriorate.

Keep Reading on Vocabulary.com

Vocabulary lists containing improve

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.

To test whether removing these cells could improve health, the team treated mice with ABT-263, a drug designed to selectively eliminate senescent cells.

From Science Daily • Apr. 16, 2026

HoldCo Asset Management, the Fort Lauderdale, Fla.–based activist hedge fund known for engaging in campaigns to improve underperforming banks, is zeroing in on two new targets after its most active year yet.

From Barron's • Apr. 16, 2026

It is too soon to tell whether this organizational shake-up—a near-term disruption—will improve programs expected to take years or decades to prove their worth.

From The Wall Street Journal • Apr. 16, 2026

“These deals will only further exacerbate LAUSD’s financial problems and do nothing to improve the delivery of education for their declining student base.”

From Los Angeles Times • Apr. 15, 2026

How can you improve the image you project to the world?’

From "South of Somewhere" by Kalena Miller