vi to improve in accuracy, delicacy, or excellence.
2. refine ·vi to become pure; to be cleared of feculent matter.
3. refine ·vi to affect nicety or subtilty in thought or language.
4. refine ·vt to purify from what is gross, coarse, vulgar, inelegant, low, and the like; to make elegant or exellent; to polish; as, to refine the manners, the language, the style, the taste, the intellect, or the moral feelings.
5. refine ·vt to reduce to a fine, unmixed, or pure state; to free from impurities; to free from dross or alloy; to separate from extraneous matter; to purify; to defecate; as, to refine gold or silver; to refine iron; to refine wine or sugar.