refine

verb
re·​fine | \ ri-ˈfīn How to pronounce refine (audio) \
refined; refining

Definition of refine

transitive verb

1 : to free (something, such as metal, sugar, or oil) from impurities or unwanted material
2 : to free from moral imperfection : elevate
3 : to improve or perfect by pruning or polishing refine a poetic style
4 : to reduce in vigor or intensity
5 : to free from what is coarse, vulgar, or uncouth

intransitive verb

1 : to become pure or perfected
2 : to make improvement by introducing subtleties or distinctions

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Other Words from refine

refiner noun

Synonyms & Antonyms for refine

Synonyms

ameliorate, amend, better, enhance, enrich, help, improve, meliorate, perfect, upgrade

Antonyms

worsen

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Examples of refine in a Sentence

The inventor of the machine spent years refining the design. The class is meant to help you refine your writing style.

Recent Examples on the Web

Researchers, meanwhile, are documenting the power of simple prevention approaches and refining them. Greg Miller, Science | AAAS, "Three suicide prevention strategies show real promise. How can they reach more people?," 22 Aug. 2019 How the machine has marked it and correct it and the machine will then learn that and refine it through. Eric Johnson, Vox, "“The $300 textbook is dead,” says the CEO of textbook maker Pearson," 2 Aug. 2019 Behind the scenes, the raceway is working to recapture used oil, cleaning solvents, fluids and lubricants and re-refine them for further use. Elena Shao, SFChronicle.com, "Car racing doesn’t sound eco-friendly, but Sonoma Raceway wants to change that," 26 July 2019 Check Point sees signs that attackers started developing Agent Smith adware in 2016 and have been refining it ever since. Lily Hay Newman, WIRED, "Adware Is the Malware You Should Actually Worry About," 21 July 2019 During Apollo 8, the first successful crewed mission to orbit the moon and return to Earth, her team created a return trajectory and refined it in real time using relatively primitive computing tools. Erin Blakemore, National Geographic, "Inside Apollo mission control, from the eyes of the first woman on the job," 18 July 2019 The key might not be in throwing in a ton of new exercise variations, but leaning into working on doing your absolute best on those core movements and working to refine them. Casey Johnston, SELF, "Ask a Swole Woman: What Can I Do If I'm Bored of My Lifting Routine?," 24 Apr. 2019 That's why, in 1989, the IGBC developed its first bear-resistant container protocol and it's been refining it ever since. Ezra Dyer, Popular Mechanics, "This Cooler Is "Certified Bear Resistant." What Does That Really Mean?," 21 Dec. 2018 That will help refine a prototype DNA chip, recently developed at LIB, that could quickly tell breeders whether a bee carries those genes. Erik Stokstad, Science | AAAS, "Breeders toughen up bees to resist deadly mites," 25 July 2019

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

1582, in the meaning defined at transitive sense 1

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More Definitions for refine

refine

verb

English Language Learners Definition of refine

: to remove the unwanted substances in (something)
: to improve (something) by making small changes

refine

verb
re·​fine | \ ri-ˈfīn How to pronounce refine (audio) \
refined; refining

Kids Definition of refine

1 : to bring to a pure state refine sugar
2 : to make better : improve He's refining his recipe.
re·​fine | \ ri-ˈfīn How to pronounce refine (audio) \
refined; refining

Medical Definition of refine

: to free (as sugar or oil) from impurities or unwanted material

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