noun
foreign worker; guest worker
Refers specifically to a foreign worker, especially in the context of post-war Germany, but also used more broadly for migrant workers. The term carries a nuance of temporary or guest status.
from German Gastarbeiter
ドイツでは多くのガストアルバイターが製造業で働いていた。
In Germany, many guest workers worked in manufacturing.
ガストアルバイター制
The guest worker program was introduced in the 1960s.