›to stop making changes to a plan, date, agreement, etc. and make a final decision about it: Although details are still being finalized, the deal is expected to go through next month.finalize plans/arrangementsfinalize a deal/an agreement
finalization(UKalsofinalisation)/ˌfaɪnəlaɪˈzeɪʃən/noun[U]›De Beers said finalization of its trade agreement with the country has been delayed by the political situation.