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”)

one-on-one fight / (by extension) one-on-one competition or contest

(electricity) negative charge

bath time

limeade

A transliteration of the English male given name and surname Simon

everything

(colloquial) current boyfriend

(slang) Alternative form of 彼氏 (kareshi, “boyfriend”)

everyone, one and all