(いちだん)

いちだん
noun, adverb
one level; one step
number
1. one level; one step; one tier
A single step or level in a staircase, hierarchy, or gradation.
階段(かいだん)一段(いちだん)()がる
I go up one step on the stairs.
I aim for the next level up.
I obtained first dan in judo.
2. a degree (more/higher)
Used adverbially to mean 'even more' or 'to a greater degree.'
It became even colder as autumn arrived.
練習(れんしゅう)して一段(いちだん)上手(じょうず)になった。
I practiced and became even better.
The new product's performance improved even more.

一段(いちだん) has multiple uses.

Common patterns

In Japanese grammar, 一段(いちだん)動詞(どうし) (ichidan verbs) are verbs whose stems end in the same sound before conjugation (e.g., ()べる, ()).

Martial arts

(だん) is a rank in martial arts like 柔道(じゅうどう), 剣道(けんどう), 空手(からて). 一段(いちだん) (first dan) is typically the first black belt level.

Adverbial use

一段(いちだん) means "even more" or "to a greater degree," emphasizing an increase or improvement.

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