Japanese Kanji
堦kai
stairs · flight of steps · degree
Extended kanji · 12 strokes
Stairs, flight of steps, degree, class, rank, step.
堦 is a Extended kanji — used in Japanese personal names and specialised writing. With 12 strokes, it appears in classical literature, place names, and formal documents.
Start with hiragana and katakana — the foundation of Japanese reading.