Baltic, Baltic Sea: a sea in northern Europe; stronghold of the Russian navy
Baltic, Baltic language: a branch of the Indo-European family of languages related to the Slavonic languages; Baltic languages have preserved many archaic features that are believed to have existed in Proto-Indo European
adjective
Baltic: of or pertaining to or characteristic of the Baltic States or their peoples or languages
Baltic: of or near or on the Baltic Sea "The Baltic republics"