1. even more; still more; much more; further
usu. 〜と
おかげで一段と自信がつきました。Thanks to that, I have become even more confident.
2. one step; one rung; one level; one grade; one rank
ドキドキしながらその一段に足を下ろす。I lower my foot onto that one step, heart pounding.
3. one paragraph; one passage
4. ichidan (verb, verb conjugation)