What does 段 mean?
段 is a Japanese noun meaning “step, stair, grade” in English. It can also be translated as “shelf, grade, dan (degree of advanced proficiency in martial arts, go, shogi, etc.)” depending on context. It is written as 段 in kanji, だん in hiragana, and dan in romaji. This word is part of JLPT N3 vocabulary.
Example sentence
彼は階段を一度に三段ずつかけあがった。
He jumped up the steps three at a time.