Caucasus

a high-crowned black cap (usually made of felt or sheepskin) worn by men in Turkey and Iran and the Caucasus

a large region between the Black and Caspian seas that contains the Caucasus Mountains

a number of languages spoken in the Caucasus that are unrelated to languages spoken elsewhere a

a number of languages spoken in the Caucasus that are unrelated to languages spoken elsewhere

an autonomous republic in southwestern Russia in the northern Caucasus Mountains bordering on Georgia