refine

verb

re·​fine ri-ˈfīn How to pronounce refine (audio)
refined; refining
Synonyms of refinenext

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
refiner noun

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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
In many ways, CFOs are leading this transformation, as AI and humans work together to refine traditionally manual accounting processes, hone real-time analytics and insights, and reshape how their workforce drives value for the business. NBC news, 1 Apr. 2026 The Royals will work alongside Estévez to refine his pitching mechanics in hopes of restoring his velocity. Jaylon Thompson, Kansas City Star, 1 Apr. 2026 That includes strengthening its internal culture, refining legal strategy, and maintaining clear standards around results and professional integrity. Nia Bowers, USA Today, 1 Apr. 2026 Monasteries, often centers of agricultural and culinary innovation, played a key role in refining pickling methods. Literary Hub, 31 Mar. 2026 See All Example Sentences for refine

Word History

First Known Use

1582, in the meaning defined at transitive sense 1

Time Traveler
The first known use of refine was in 1582

Browse Nearby Words

Cite this Entry

“Refine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/refine. Accessed 2 Apr. 2026.

Kids Definition

refine

verb
re·​fine ri-ˈfīn How to pronounce refine (audio)
refined; refining
1
: to come or bring to a pure state
refine sugar
2
: to make or become improved
3
: to free from what is vulgar
4
: to improve by introducing something that makes a small difference
refined upon the older methods
refiner noun

Medical Definition

refine

transitive verb
re·​fine ri-ˈfīn How to pronounce refine (audio)
refined; refining
: to free (as sugar or oil) from impurities or unwanted material

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