GASTHAUS Meaning of GASTHAUS in English [ 'gasthaʊs ]■ noun ( plural Gasthäuser -ˌhɔɪzə ) a small inn or hotel in a German-speaking country.OriginGer., from Gast 'guest' + Haus 'house'. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004