- 奴隶制 núlìzhì slaverythe social system of slavery based on the ownership of slaves by slaveholders; the institution of slavery
- 奴隶主 núlìzhǔ slave ownerAn owner of slaves; specifically refers to the ruling class in a slave-holding society who owned both slaves and the means of production.
- 奴隶社会 núlìshèhuì slave societyslave-owning society; in Marxist theory, the historical period following primitive society and preceding [[封建社会|封建社會|feng1 jian4 she4 hui4]] where the economy is based on the ownership of slaves and production tools by slave owners
- 奴隶制度 núlìzhìdù slaveryslavery; the social system of slave ownership