sovkhoz
A large, state-owned farm in the Soviet Union.
The average size of a sovkhoz was 15,300 hectares (153 km²), nearly three times the average kolkhoz (5,900 hectares or 59 km² in 1990.)
Where it comes from
From Russian совхо́з (sovxóz), abbreviation of сове́тское хозя́йство (sovétskoje xozjájstvo, “soviet farm”).
Adapted from the Wiktionary entry sovkhoz (CC BY-SA 4.0).