indentured

年季奉公人

Refers to a person, typically an immigrant, who was bound by a contract to work for a specific period, often in exchange for passage to a new country.

アメリカに来て、一定期間他人のために働く契約を結んだ人。

年季奉公労働者

Refers to a worker bound by a formal contract (indenture) to work for an employer for a fixed period.

特定の期間、契約に基づいて働く人、しばしば劣悪な条件下で。