noun, plural o·blasts, Russian o·bla·sti [aw-bluh-styee]. (in Russia and the Soviet Union) an administrative division corresponding to an autonomous province.

Is oblast an English word?

An oblast (/ˈɒblæst/; also UK: /ˈɒblɑːst/) is a type of administrative division of Belarus, Bulgaria, Kazakhstan, Kyrgyzstan, Russia and Ukraine, as well as the former Soviet Union and Kingdom of Yugoslavia. ... The term is often translated as "area", "zone", "province" or "region".

What is the definition of oblast?

: a political subdivision of Imperial Russia or a republic of the U.S.S.R. or of the Russian Federation.