るいしん 累進 Common word Wanikani level 55 LinksSentence search for 累進Sentence search for るいしんKanji details for 累 and 進Edit in JMdict Noun, Suru verb, Intransitive verb1. successive promotion; gradual progression; rising step by stepNoun, Suru verb, Intransitive verb2. increasing progressively (of income tax, etc.) Discussions Log in to talk about this word.