Denshi Jisho — Online Japanese dictionary

けん 1: steepness; steep place;
2: harsh (look); sharp (tongue)
Noun, Na-adjective 
さが precipitous
Taru-adjective, Adverb taking the 'to' particle, Archaism 
きけん 1: danger; peril; hazard;
2: (Na-adjective) dangerous; hazardous
Common word, Noun, No-adjective 
ほけん insurance; guarantee
Common word, Noun, No-adjective 
けんそ precipice; steep (e.g. mountain pass)
Na-adjective, Noun 
けんろ steep path
Noun 
けんあく dangerous; serious; gloomy; perilous; threatening; stormy
Common word, Na-adjective, Noun 
たんけん exploration; expedition
Common word, Noun, Suru verb, No-adjective 
ぼうけん risk; venture; adventure
Common word, Noun, Suru verb 
いんけん tricky; wily; treacherous
Na-adjective, Noun 
けんそう forbidding look; uncanny look
Na-adjective, Noun 
けんなん steep; dangerous
Na-adjective, Noun 
けんのん risky; dangerous; insecure
Na-adjective, Noun 
けんのん risky; dangerous; insecure
Na-adjective, Noun 
しんけん 1: seriousness; earnestness;
2: real sword (as opposed to unsharpened or wooden practice weapon) (practise)
Irregular kanji usage, Noun, Na-adjective 
じゃけん hard hearted; cruel; unkind
Na-adjective, Noun 
てんけん natural defences; natural defenses; steep place
Noun 
しい けわしい 1: precipitous; rugged; inaccessible; impregnable; steep;
2: grim; severe; stern
Common word, Adjective 
きけんし regarded as dangerous
Noun, Suru verb 
きけんび dangerous day (one on which conception is likely to occur)
Noun 
私保 しほけん private insurance
Noun 
ほけんい insurance doctor
Noun 
ほけんや insurance man
Noun 
けんしゅん steep; precipitous
Na-adjective, Noun 
しゅんけん steep; precipitous
Na-adjective, Noun 
ほけんきん insurance payout; insurance money
Common word, Noun 

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