一

Meaning

One · uno

Readings

• On (音読み): イチ・イツ
• Kun (訓読み): ひと.つ

Example words

• 一つ（ひとつ）— one (thing)
• 一人（ひとり）— one person; alone
• 一月（いちがつ）— January

Structure

Radical 一 (いち · One) · 1 strokes · school grade 1

Watch out

いち becomes いっ before k/s/t/p: 一階 いっかい, 一分 いっぷん, 一冊 いっさつ. Spanish speakers: no gender or plural anywhere in the number system.