険

precipitous, inaccessible place, impregnable position, steep place, sharp eyes

Kun

けわしいkewashii

On

ケンkene.g.保険ほけんinsurance

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

阜mound

Parts

⻖moundform of 阜口mouth人person