What does "kuban" mean?

A river in Russia in the North Caucasus. It flows through the Karachay-Cherkessia, Stavropol Krai Krasnodar Krai, and Adygea.

Kuban

//kuːˈbɑːn// name

name ·Rare ·Advanced level

Proper Noun

1
A river in Russia in the North Caucasus. It flows through the Karachay-Cherkessia, Stavropol Krai Krasnodar Krai, and Adygea.
"...ex-Imperial officers who came to the Don and the Kuban to take arms against Lenins regime..."
2
A surname.
3
a geographic region of Southern Russia surrounding the Kuban River, on the Black Sea between the Don Steppe, Volga delta and the Caucasus. broadly
"1954, United American Ukrainian Organizations Committee of New York "In the south, the Red Army abandoned Krasnodar and all of the Kuban. Nazi forces plunged south into the Caucasian highlands and east to Stalingrad.""
4
Krasnodar Krai
""In 1995, the administration of the Krasnodar Territory, again popularly called the Kuban, adopted the flag of the Kuban Cossacks, with the addition of the territorial coat of arms.""