A non-Japanese person.
In Japan, a foreigner.
A term that refers to a non-Japanese investor or business person in Japan. The term also refers to a large U.S. or European brokerage firm operating in Japan.
Origin of gaijin
From Japanese 外人 (gaijin がいじん "foreigner"), from Middle Chinese 外人 (ngwàj-nyin) (compare Mandarin wàirén 外人), from Old Chinese (*ŋʷˁat-s ning "foreigner", "outsider" < "non-relative"), from 外 ("outside", "outer") + 人 ("person").