1. to improve something by making small changes or removing impurities
Usage: third person singular present tense of ‘refine’
2. to make something more elegant, cultured, or sophisticated

Examples

• The company refines crude oil into gasoline.
• She refines her writing style with each draft.
• The chef refines the recipe by adjusting the spices.
• He refines his tennis technique through daily practice.
• The artist refines her brushwork over many years.
• The software engineer refines the code to improve performance.