REFINE

v. 1 purify, cleanse, clear, clarify, decontaminate They continued to refine the liquid till all the impurities were gone 2 cultivate, civilize, polish, improve, elevate, perfect He is trying to refine his speech by getting rid of his country accent 3 hone, sharpen, concentrate, focus, subtilize We ought to refine our argument for higher wages before approaching the management