The term 'Caucasus Capital' refers to the capital city of the Caucasus region, which is located in the South Caucasus between the Black Sea and the Caspian Sea. The two crossword solutions for this term are Tbilisi (7 letters) and TbilisiGeorgia (14 letters). Tbilisi is the capital and largest city of Georgia, a country located in the Caucasus region. It is one of the oldest cities in the world, with archaeological evidence suggesting that it has been inhabited since the 5th century BC. TbilisiGeorgia is the full name of the city, which is often used to distinguish it from other cities with the same name.