the number of people

(Empire of Japan) Japan (内地) and Taiwan (台湾)

Alternative spelling of カルチャーショック

the inside of 病(びょう)院(いん) (byōin, “hospital”) and 医(い)院(いん) (iin, “clinic”) / the inside of 寺(じ)院(いん) (jiin, “Buddhist temple”) / the inside of 議(ぎ)院(いん) (giin, “parliament/congress/house”)