(mahjong) Generic name of the three dragon tiles: 白 (haku, “white dragon”), 發/𤼵 (hatsu, “green dragon”), and 中 (chun, “red dragon”)

(mahjong) big three dragons: a 役満 (yakuman, “limit”) hand with triplets or quads of each of the 三元牌 (sangenpai, “dragon tiles”)

(monarchy) an East Asian practice of dating, using exactly one distinct era name for each monarch's reign, where such era name also eventually becomes the monarch's posthumous name

ex-boyfriend or ex-girlfriend

failure is a stepping stone to success

(Buddhism) think on the power of Kannon

polyandry (plurality of husbands at the same time)

(literally) know the other side and yourself, a hundred battles will not be perilous