adverb taking the 'to' particle, adverb, noun which may take the genitive case particle 'no'
Most commonly used as 一段と before an adjective, verb, or adjectival expression to show a noticeable increase in degree. 一段の can also mean further or greater in somewhat formal phrasing.
今年の冬は去年より一段と寒い。
This winter is even colder than last year.
彼女の演技はこの一年で一段と上達した。
Her acting improved even more over the past year.
noun, adverb
Refers to a single step, rung, grade, rank, or level, either literally on stairs or figuratively in ability, class, quality, or status.
階段を一段上がったところで振り返った。
After going up one step on the stairs, I turned around.
彼は一段上のクラスに移った。
He moved up to a class one level higher.
noun
Used as a unit of written text or a passage; 段落 is often the clearer everyday word for 'paragraph,' but 一段 can refer to one such section.
この文章の最後の一段をもう一度読んでください。
Please read the last paragraph of this text once more.
noun
ichidan verb; ichidan conjugation
Grammar term, used as an abbreviation for 一段動詞 or 一段活用 and often contrasted with 五段. This is domain-specific learner or linguistic terminology.
動詞の活用には五段と一段がある。
Verb conjugations include godan and ichidan.