K
Kun'yomi are readings, that originate from the Japanese reading that has been associated with the kanji. Usually single kanji are read with Kun'yomi while compounds are more often read with
On'yomi, but there are many exemptions to this rule.
O
On'yomi are readings of a kanji, that have been imported from China along with the kanji itself. Most compounds are read with On'yomi while single kanji are usually read with
Kun'yomi, but there are many exemptions to this rule.