Vocabulary What does 十九 (じゅうきゅう, juukyuu) mean? 十九 (じゅうきゅう, juukyuu) means nineteen; 19. Quick factsReadingじゅうきゅうRomajijuukyuuPart of speechnumeric 十九じゅうきゅうjuukyuunineteen; 191numeric nineteen; 19Also written: 19、一九Kanji in this word十ten; the number 10九nine; the number 9