der Heimatvertriebener

1. 1

   someone expelled from their homeland — male or of unspecified gender

2. 2

   someone expelled from their homeland (male or of unspecified gender); a German-speaker expelled from their homeland after World War II (from areas such as East Prussia, Pomerania, Silesia, Sudetenland etc.)

Светлым шрифтом — формы, выведенные по обычным правилам склонения из именительного, родительного падежа и множественного числа.