Definitions of refine:

• verb:   make more precise or increase the discriminatory powers of

  Example: "Refine a method of analysis"

• verb:   attenuate or reduce in vigor, strength, or validity by polishing or purifying

  Example: "Many valuable nutrients are refined out of the foods in our modern diet"

• verb:   reduce to a fine, unmixed, or pure state; separate from extraneous matter or cleanse from impurities

  Example: "Refine sugar"

• verb:   treat or prepare so as to put in a usable condition

  Example: "Refine paper stock"

• verb:   make more complex, intricate, or richer

  Example: "Refine a design or pattern"

• verb:   improve or perfect by pruning or polishing

  Example: "Refine one's style of writing"