Central Asia is a subregion of Asia that stretches from the Caspian Sea in the southwest and Eastern Europe in the northwest to Western China and Mongolia in the east, and from Afghanistan and Iran in the south to Russia in the north. Wikipedia

A region in the centre of Eurasian continent Wikipedia Disambiguation

Subregion of the Asian continent Wikidata

A geographic region of the Asian continent between the Caspian Sea on the west and China on the east, extending northward into the central region of Russia and southward to the northern borders of Iran and Afghanistan, and comprised of independent former republics of the Soviet Union, including Kazakstan, Uzbekistan, Turkmenistan, Kyrgyzstan and Tajikistan. OmegaWiki

A landlocked area of continental Asia comprising Kazakhstan, Kyrgyzstan, Tajikistan, Turkmenistan and Uzbekistan. In the USSR and the modern Russia the area is called Middle Asia (Средняя Азия). Wiktionary