発はっ達たつ段だん階かいMeaningsNoun1. developmental stageKanji used発let out達accomplished段step階floor (of a building)Composed of発はっ達たつdevelopment; growth; progress; advancement; expansion (of a typhoon, low-pressure area, etc.)Noun段だん階かいstage; step; phase; level; rank; grade; gradation; order; stairsNoun