Trinidad and Tobago UK /ˌtɹɪn.ɪ.dæd ænd təˈbeɪ.ɡəʊ/US /ˌtɹɪn.ɪ.dæd ænd toʊˈbeɪ.ɡoʊ/ noun1 •A country consisting of two main islands and several smaller islands in the Caribbean, off the coast of Venezuela. Official name: Republic of Trinidad and Tobago. Capital: Port of Spain.