noun

• (historical) Also GULAG: the system of all Soviet labour camps and prisons in use, especially during the Stalinist period (1930s–1950s).
  "One important difference between the GULAG system and the Nazi concentration camps was that a person sentenced to five years of hard labor in a Soviet labor camp could expect, assuming he or she survived, to be released at the end of the sentence."
• (by extension)
  "Nevertheless, the Trump administration has continued to insist that Abrego Garcia is a dangerous gang member in order to justify sending him to an overseas Gulag that has been accused of torturing inmates."
• (by extension)

verb

• (transitive, informal, also figuratively) To compel (someone) into a forced labour camp or a similar place of confinement or exile.
  "Regulative censorships can be amended or revolutionized in ways that raise or lower bodycounts, numbers of books banned or citizens ghettoed or gulaged."

name

• (historical) The government agency in charge of the Soviet Union's network of forced labour camps, which was established in 1918 and formally abolished in 1960.
  "The millions of slave-labourers at the disposal of GULAG played an important economic role, and indeed became accepted as a normal component of the Soviet economy."