1.
The system of ~ was the social and economic system by which the owners of land had serfs.
N-UNCOUNT
2.
If someone was in a state of ~, they were a serf.
N-UNCOUNT
1.
The system of ~ was the social and economic system by which the owners of land had serfs.
N-UNCOUNT
2.
If someone was in a state of ~, they were a serf.
N-UNCOUNT
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012