ケン

けわ.しい

険, ⻖, 㑒, 人, 一, 口

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

探険(たんけん): exploration; expedition
危険(きけん): (1) danger; peril; hazard (2) dangerous; hazardous
保険(ほけん): insurance; guarantee
冒険(ぼうけん): risk; venture; adventure
険しい(けわしい): (1) precipitous; rugged; inaccessible; impregnable; steep (2) grim; severe; stern