Oblast is a type of administrative division in Slavic countries and some countries of the former Soviet Union. The word "oblast" is used in English as well, but it is often translated as "area", "zone", "province", or "region". The last translation may lead to confusion, because the subdivision of "oblast" is called "raion" which can be translated as "region" or "district" as well.
Oblasts are a type of administrative division of Belarus, Bulgaria, Kazakhstan, Kyrgyzstan, Russia, Ukraine, and the no longer existing Soviet Union. Official terms in successor states of the Soviet Union differ, but some still use a cognate of the Russian term, e.g. voblast (voblasts, voblasts' , IPA: [ˈvobɫasʲtsʲ]) is used for provinces of Belarus, and oblys (plural: oblystar) for provinces of Kazakhstan.