Denshi Jisho — Online Japanese dictionary

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 
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 
供華 くうげ offering of flowers (at shrine, grave, etc.); floral tribute
Noun 
空狐 くうこ second-ranking fox spirit
Noun 
箜篌 くうご konghou (ancient Chinese harp)
Noun 
空佐 くうさ (Self Defense Force's Air Force) colonel (defence); lieutenant; major
Noun 
空地 くうち vacant land
Noun 
空費 くうひ wastefulness
Noun, Suru verb 
空理 くうり abstract or impracticable theory
Noun 
苦役 くえき hard toil
Noun, No-adjective 
枸櫞 くえん citron (Citrus medica)
Noun, Obscure term, Usually written using kana alone 
久遠 くおん eternity
Noun, No-adjective 
区会 くかい ward assembly
Noun 
句会 くかい gathering of haiku poets
Noun 
区劃 くかく division; section; compartment; boundary; area; block
Noun, Suru verb 

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