すうだん

雛段
small steps
risers (on stage or platform)

* * *

すうだん【数段】

〔階段などの〕 several flights (of stairs); 〔程度の〕 several levels.

●数段まさる far surpass

・文章を書かしたら彼女のほうが数段上だ. In composition she is miles above me.