one; 1
The cardinal number one. Also used as a prefix in counting or numbering. Legal variants 壱, 弌, 壹 are used to prevent alteration.
Please count from one to ten.
一ページ目を開いて。
Open to the first page.
noun which may take the genitive case particle 'no', suffix
Used as a suffix or with の to mean the best or top in a category. Often in compounds like 日本一 (Japan's best).
彼はクラスで一の成績だ。
He has the best grades in the class.
この店のラーメンは世界一おいしい。
This shop's ramen is the most delicious in the world.
Refers to the start or origin of something. Often used in set phrases like 一からやり直す.
一からやり直そう。
Let's start over from the beginning.
一を聞いて十を知る。
Hearing one thing, understand ten. (A wise person grasps the whole from a part.)
Used as a prefix before a noun to mean 'a single' or 'one of many'. Common in compounds like 一石二鳥.
bottom string (shamisen, etc.)
The first (lowest-pitched) string on a shamisen or similar instrument.
三味線の一の糸を張り替える。
Replace the bottom string of the shamisen.
She is the best in the class.
He built the company from scratch.
I think health comes first, money second.
Outdated kanji form, formerly used in legal documents.
Archaic variant used in legal documents.