Baltic and Balto-Slavic language

Baltic noun - 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.

Balto-Slavic language and baltic are semantically related. In some cases you can use "Balto-Slavic language" instead a noun "Baltic".

Balto-Slavic language noun - A family of Indo-European languages including the Slavic and Baltic languages.

Baltic and Balto-Slavic language are semantically related. Sometimes you can replace term "Baltic" with "Balto-Slavic language", this terms are similar.