成金 なりきん Also written 成り金 Meanings Noun, の-adjective upstart; nouveau riche; new money; new rich; coming into wealth suddenly Noun piece promoted to gold general (orig. meaning) Kanji 成 become. Read as なる. 金 money. Read as キン. Words containing 成金 にわか成金 (にわかなりきん) overnight millionaire 成金趣味 (なりきんしゅみ) the ostentation (bad taste) of the nouveau riche Jinuma: Japanese Dictionary · Word lists