This is the 9667th most frequent Russian word.
челябинском
"Челябинском" means "Chelyabinsk" in the prepositional case, often referring to something located in or associated with the city of Chelyabinsk, Russia.
Here, 'челябинском' is an adjective in the prepositional case describing the noun 'районе'.
Я родился в Челябинском районе.
I was born in the Chelyabinsk district.
Here, 'челябинском' is an adjective in the prepositional case agreeing with the noun 'заводе'.
На челябинском заводе производят качественную сталь.
High-quality steel is produced at the Chelyabinsk plant.
Here, 'Челябинском' is an adjective in the prepositional case referring to the proper noun 'озере'.