bonded labourer
noun /ˌbɒndɪd ˈleɪbərə(r)/
/ˌbɑːndɪd ˈleɪbərər/
(US English bonded laborer)
- a person who is forced to work for an employer for a fixed time without being paid, often as a way of paying a debt
- The children were working as bonded labourers.