refine refine /rɪˈfaɪn/

verb

1. () Improve or perfect by pruning or polishing  ( down [Informal] , fine-tune , refine , polish )
   improve or perfect by pruning or polishing
    Refine one's style of writing
   refine one's style of writing
   
2. () Make more complex, intricate, or richer  ( elaborate , rarify , refine , complicate )
   make more complex, intricate, or richer
    Refine a design or pattern
   refine a design or pattern
   
3. Make more precise or increase the discriminatory powers of  ( refine )
   make more precise or increase the discriminatory powers of
    Refine a method of analysis
   refine a method of analysis
    Refine the constant in the equation
   refine the constant in the equation
   
4. Attenuate or reduce in vigor, strength, or intensity by polishing or purifying  ( refine )
   attenuate or reduce in vigor, strength, or intensity by polishing or purifying
    Many valuable nutrients are refined out of the foods in our modern diet
   many valuable nutrients are refined out of the foods in our modern diet
   
5. Reduce to a fine, unmixed, or pure state; separate from extraneous matter or cleanse from impurities  ( rectify , refine )
   reduce to a fine, unmixed, or pure state; separate from extraneous matter or cleanse from impurities
    Refine sugar
   refine sugar
   
6. Treat or prepare so as to put in a usable condition  ( refine )
   treat or prepare so as to put in a usable condition
    Refine paper stock
   refine paper stock
    Refine pig iron
   refine pig iron
    Refine oil
   refine oil