- Sao Tome and Principe, Democratic Republic of Sao Tome and Principe, Sao Tome e Principe, Sao Thome e Principe, St. Thomas and Principe - island nation in the South Atlantic off the West coast of Africa; achieved independence from Portugal in 1975; has enormous offshore oil reserves
--1 is a kind of country, state, land
--1 is a part of Atlantic, Atlantic Ocean
--1 has parts: Sao Tome; Principe