立陶宛语 is the official language of 立陶宛, a country in the Baltic region of Europe. It belongs to the 波罗的语 branch of the 印欧语系 and is one of the oldest languages in Europe. The language has two main dialects: 高地方言 and 低地方言. 立陶宛语 uses the Latin alphabet and has a rich system of inflection, which means that the endings of words change to express different grammatical functions.