Nobi

Joseon class system
Class Hangul Hanja Status
Yangban 양반 兩班 noble class
Jungin 중인 中人 intermediate class
Sangmin 상민 常民 common people
Cheonmin 천민 賤民 lowborn people (nobi, baekjeong, mudang, gisaeng, etc.)
Nobi
Hangul
노비
Hanja
奴婢
Revised Romanizationnobi
McCune–Reischauernobi

Nobi were members of the slave class during the Korean dynasties of Goryeo and Joseon. Legally, they held the lowest rank in medieval Korean society. Nobi were considered property or chattel, and could be bought, sold, or gifted.