A guest worker, especially one in Germany.
[German : Gast, guest (from Middle High German, from Old High German; see ghos-ti- in the Appendix of Indo-European roots) + Arbeiter, worker (from arbeiten, to work, from Arbeit, work, from Middle High German arebeit, from Old High German arabeit; see orbh- in the Appendix of Indo-European roots).]
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