Word古参こさんListenYour browser has no Japanese voice, so Listen is not available.How to add a Japanese voiceCommonMeaningsNoun · No-adjectivesenior; veteran; old-timerKanji in this word古参Dictionary data: JMdict and KANJIDIC2, property of the EDRDG, used under its licence (CC BY-SA 4.0).(opens in a new tab)