fi·nal·ize / ˈfīnlˌīz/ • v. [tr.] complete (a transaction, esp. in commerce or diplomacy) after discussion of the terms: the two countries had yet to finalize a peace treaty. ∎ produce or agree on a finished and definitive version of: efforts intensified to finalize plans for postwar reconstruction.DERIVATIVES: fi·nal·i·za·tion n.