Dominican Republic UK /dəmˌɪn.ɪ.kən ɹɪˈpʌb.lɪk/US /doʊˌmɪn.ɪ.kən ɹəˈpʌb.lɪk/ noun1 •A country in the Caribbean. Capital: Santo Domingo.According to the World Bank, over the last two decades, the Dominican Republic has been one of the fastest-growing economies in Caribbean. — 2024