The full form of lt is Lithuania (TLD). It’s used on Computing ,Domain Names (TLD) in Lithuania

.lt is the Internet country code top-level domain (ccTLD) for Lithuania.

Lithuania , officially the Republic of Lithuania (Lithuanian: Lietuvos Respublika), is a country in the Baltic region of Europe. Lithuania is one of the Baltic states. Situated on the eastern shore of the Baltic Sea, to the southeast of Sweden and Denmark, Lithuania is bordered by Latvia to the north, Belarus to the east and south, Poland to the south, and Kaliningrad Oblast (a Russian exclave) to the southwest.

Aside from a brief period of independence from 1918 to 1940, Lithuania was occupied by Russia beginning in 1795, was controlled by Germany for a brief period during World War II, and was incorporated into the U.S.S.R. in 1944 as one of its constituent republics. On March 11, 1990, Lithuania declared its independence by a unanimous vote of its newly elected parliament. The new Soviet parliament acknowledged Lithuania’s independence on September 6, 1991. Lithuania was admitted into the European Union (EU) and the North Atlantic Treaty Organization in 2004. The capital is Vilnius.

Lithuania is bounded by Latvia to the north, Belarus to the east and south, Poland and the detached Russian oblast of Kaliningrad to the southwest, and the Baltic Sea to the west.