refine - definition and synonyms

verb [transitive] 

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/rɪˈfaɪn/
present tense
I/you/we/theyrefine
he/she/itrefines
present participlerefining
past tenserefined
past participlerefined
  1. 1
    to make small changes to something in order to improve it

    We’ve refined the system since it was first launched.

  2. 2
    to remove things from a natural substance in order to make it pure
     Synonyms and related words