にゅうだん 入段 LinksSentence search for 入段Sentence search for にゅうだんKanji details for 入 and 段Edit in JMdict Noun, Suru verb, Intransitive verb1. becoming a dan holder (in judo, shogi, go, etc.); attaining 1st danSee also 段 Discussions Log in to talk about this word.