Denshi Jisho — Online Japanese dictionary

砕く くだく to break; to smash
Common word, Godan verb with ku ending, Transitive verb 
下す くだす 1: to make (a decision); to pass (judgement, etc.); to hand down (orders, etc.);
2: to let go down; to lower;
3: to do oneself; to do by oneself
Common word, Godan verb with su ending, Transitive verb 
下り くだり 1: down-train (going away from Tokyo);
2: down-slope; downward going
Common word, Noun, Noun suffix 
下る くだる 1: to descend; to go down; to come down;
2: to be handed down (of an order, judgment, etc.);
3: to pass (of time);
4: to surrender; to capitulate;
5: (often in neg. form) to be less than; to be inferior to;
6: to have the runs; to have diarrhea
Common word, Godan verb with ru ending, Intransitive verb 
駆逐 くちく extermination; expulsion; destruction
Common word, Noun, Suru verb 
口火 くちび fuse; spark plug; cause (of war); origin (of a quarrel)
Common word, Noun 
屈指 くっし leading; foremost; preeminent; outstanding; one of the best
Common word, Noun, No-adjective 
苦痛 くつう pain; agony; bitterness
Common word, Na-adjective, Noun, No-adjective 
靴屋 くつや shoemaker; shoe store
Common word, Noun 
諄い くどい 1: (Usually written using kana alone) verbose; importunate; wordy; repetitious; long-winded;
2: (Usually written using kana alone) heavy (taste); rich; strong; cloying; gaudy; loud
Common word, Adjective 
駆動 くどう driving force
Common word, Noun, Suru verb 
区内 くない in the ward or borough
Common word, Noun 
苦難 くなん suffering; distress; hardship; trial
Common word, Noun 
苦悩 くのう suffering; distress; affliction; anguish; agony; trouble
Common word, Noun, Suru verb 
配る くばる to distribute; to deliver; to deal (cards)
Common word, Godan verb with ru ending, Transitive verb 
工夫 くふう 1: scheme; device; scheming; devising; figuring out; coming up with; solving ingeniously;
2: dedication to spiritual improvement (esp. through Zen meditation)
Common word, Noun, Suru verb 
区分 くぶん division; section; demarcation; partition; segmentation; subdivision; (traffic) lane; compartment; classification; sorting
Common word, Noun, Suru verb, No-adjective 
区別 くべつ distinction; differentiation; classification
Common word, Noun, Suru verb 
窪み くぼみ hollow; cavity; dent; depression
Common word, Noun 
区民 くみん ward residents
Common word, Noun 
供物 くもつ offering
Common word, Noun 
曇り くもり cloudiness; cloudy weather; shadow
Common word, Noun 
曇る くもる 1: to get cloudy; to cloud over; to become overcast;
2: to cloud up; to fog up; to mist up; to become dim;
3: to be gloomy; to be clouded (expression); to be downcast;
4: to look slightly downward (of a noh mask; indicating sadness, grief, etc.)
Common word, Godan verb with ru ending, Intransitive verb 
供養 くよう memorial service for the dead; holding a service
Common word, Noun, Suru verb 
暗い くらい 1: (Usually written using kana alone) dark; gloomy;
2: dark (in colour); dull;
3: depressed; dispirited;
4: sorrowful; bitter (as in a dark past);
5: unclear; unfamiliar; unknown
Common word, Adjective 
比べ くらべ contest; comparison; competition
Common word, Noun, Noun suffix, Usually written using kana alone 

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