refine

verb

re·​fine ri-ˈfīn 

refined; refining

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

Synonyms

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

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

Once exclusively focused on hardware design, medical device companies today are expanding their thinking to incorporate consumer requests into software updates that refine functionality and introduce new features. —Ross Meyercord, Forbes.com, 28 May 2025

Villa endeavoured to refine a more compact defensive structure while being clinical up front… and the response was startling. —Jacob Tanswell, New York Times, 28 May 2025

Students will also receive qualitative feedback from FSF adjunct faculty partners within 48 business hours of each assignment submission, helping students improve and refine their ideas ahead of the competition deadline. —Lisa Lockwood, Footwear News, 28 May 2025

Large rocks containing chromite, is crushed into smaller bitesize chunks, before to goes through a process to refine and extract the ore that yields chromium, a vital component of stainless steel, at the Mughulkhil mine in Logar Province, Afghanistan. —Evelyn Cheng, CNBC, 28 May 2025

Word History

First Known Use

1582, in the meaning defined at transitive sense 1

Rhymes for refine

• affine
• airline
• align
• aline
• assign
• baseline
• beamline
• benign
• bloodline
• bovine
• byline
• canine

Kids Definition

refine

verb

re·​fine ri-ˈfīn 

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 

refined; refining

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