[noun] [U] - the gulag severe work prisons for people found guilty of crimes against their countryThousands of people were sent to the gulag in the Soviet Union during Stalin's rule.He was charged with being a spy and spent the next eight years in a prison camp in the Siberian gulag.
GULAG
Meaning of GULAG in English
Cambridge English vocab. Кембриджский английский словарь. 2012