- a seaport in NE Italy, on the Gulf of Trieste.
- an area bordering the N Adriatic: originally a part of Italy; designated a free territory by the UN 1947; N zone, including the city of Trieste, 86 sq. mi. (223 sq. km) administered by the U.S. and Great Britain from 1947 until it was turned over to Italy in 1954; S zone 199 sq. mi. (515 sq. km) incorporated into Yugoslavia; now part of Slovenia.
- an inlet at the N end of the Adriatic, in NE Italy. 20 miles (32 km) wide.
- a port in NE Italy, capital of Friuli-Venezia Giulia region, on the Gulf of Trieste at the head of the Adriatic Sea: under Austrian rule (1382–1918); capital of the Free Territory of Trieste (1947–54); important transit port for central Europe. Pop: 211 184 (2001)
- a former territory on the N Adriatic: established by the UN in 1947; most of the N part passed to Italy and the remainder to Yugoslavia in 1954
