Denshi Jisho — Online Japanese dictionary

苦慮 くりょ rack one's brains
Common word, Noun, Suru verb 
狂う くるう 1: to go mad;
2: to get out of order; to go amiss
Common word, Godan verb with u ending, Intransitive verb 
包む くるむ to wrap up; to tuck in; to pack; to do up; to cover with; to dress in
Common word, Godan verb with mu ending, Transitive verb 
黒い くろい 1: black;
2: dark;
3: illicit; wicked; underground
Common word, Adjective 
苦労 くろう troubles; hardships
Common word, Na-adjective, Noun, Suru verb 
黒木 くろき unbarked lumber
Common word, Noun 
黒字 くろじ balance (figure) in the black
Common word, Noun, No-adjective 
君子 くんし man of virtue; person of high rank; wise man
Common word, Noun 
訓示 くんじ instruction; direction
Common word, Noun, Suru verb 
公庫 こうこ finance corporation
Common word, Noun, No-adjective 
公使 こうし minister (of legation)
Common word, Noun 
公司 こうし company; firm (in China)
Common word, Noun 
公子 こうし young nobleman
Common word, Noun 
公私 こうし public and private; official and personal; government and people
Common word, Noun, No-adjective 
公示 こうじ edict; public announcement
Common word, Noun, Suru verb 
公訴 こうそ accusation; prosecution
Common word, Noun, Suru verb 
公費 こうひ public expenditure
Common word, Noun 
公布 こうふ official proclamation; announcement; promulgation (e.g. of regulations)
Common word, Noun, Suru verb 
公募 こうぼ public appeal (e.g. for contributions); public offering (of securities); public advertisement (of a post)
Common word, Noun, Suru verb 
公務 こうむ official business; public business
Common word, Noun 
水鶏 くいな rail (any bird of family Rallidae, esp. the water rail, Rallus aquaticus)
Noun, Usually written using kana alone 
秧鶏 くいな rail (any bird of family Rallidae, esp. the water rail, Rallus aquaticus)
Noun, Usually written using kana alone 
庫院 くいん kitchen-cum-office of a Zen temple or monastery, where meals are prepared and senior priests have their offices
Noun 
空位 くうい vacant post; post in name only
Noun 
空尉 くうい (Self Defense Force's Air Force) captain (defence); lieutenant
Noun 
供花 くうげ offering of flowers (at shrine, grave, etc.); floral tribute
Noun 

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