Noun caucasus has 2 senses
- Caucasus, Caucasus Mountains - the mountain range in Caucasia between the Black Sea and the Caspian Sea that forms part of the traditional border between Europe and Asia
--1 is a kind of range, mountain range, range of mountains, chain, mountain chain, chain of mountains
- Caucasia, Caucasus - a large region between the Black and Caspian seas; oil is its major resource
--2 is a kind of geographical area, geographic area, geographical region, geographic region
--2 has members: Circassian
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