一

one, one radical (no.1)

Kun

ひと- · ひとつhito · hitotsue.g.一人ひとりone person

On

イチ · イツichi · itsue.g.もう一度もういちどone more time

Kun is the Japanese reading, used when the kanji stands alone with kana after it. On comes from Chinese and is mostly used in compound words.

Radical

一one