(mahjong) a 役 (yaku, “winning hand”) in which every meld consists of at least an open 刻子 (kōtsu, “pung”), worth 2 翻 (han, “doubles”)

bilingual book; a book with translations printed side by side or on opposite pages

music event featuring multiple performers at different times

to perform at the same event as another performer

heart attack

public transport

Synonym of 黄昏 (tasogare, “dusk; twilight”) / Synonym of 黄昏時 (tasogaredoki, “dusk; twilight”)

(linear algebra) diagonal matrix

(linear algebra) diagonal element; diagonal component

symmetrical pair, left and right pair