refine

US /rɪˈfaɪn/

UK /rɪ'faɪn/

B1

verb

  • To change slightly in order to improve it
  • To narrow down your search to a smaller number
  • To make a liquid cleaner by removing something

other

  • To improve something by making small changes, in order to make it better
  • To purify or cleanse something by removing unwanted elements or impurities.