Denshi Jisho — Online Japanese dictionary

クワッガ quagga (extinct South African zebra) (Equus quagga quagga)
Noun 
クンクン sniff
Noun, Adverb, Suru verb, Onomatopoeic or mimetic word 
クーガー cougar
Noun 
クーリエ courier
Noun 
クールー kuru (degenerative brain disease usually associated with New Guinean cannabalism)
Noun 
クーロン 1: coulomb () ;
2: (Computer terminology) cron (computer job run at specific time)
Noun 
嚏 くしゃみ sneeze
Common word, Noun, Usually written using kana alone 
嘴 くちばし beak; bill
Common word, Noun, Usually written using kana alone 
唇 くちびる lips
Common word, Noun 
紅 くれない deep red; crimson
Common word, Noun 
叢 くさむら clump of bushes; grassy place; thicket; jungle; the bush
Noun 
楠 くすのき camphor tree (Cinnamomum camphora); camphorwood; camphor laurel
Noun, Usually written using kana alone 
樟 くすのき camphor tree (Cinnamomum camphora); camphorwood; camphor laurel
Noun, Usually written using kana alone 
鶏 くたかけ 1: (domestic) chicken;
2: chicken (meat)
Out-dated or obsolete kana, Noun 
蛇 くちなわ 1: snake;
2: serpent; large snake
Noun 
喙 くちばし beak; bill
Noun, Usually written using kana alone 
蝮 くちばみ pit viper (esp. the mamushi, Gloydius blomhoffi)
Out-dated or obsolete kana, Noun, Usually written using kana alone 
脣 くちびる lips
Noun 
嚏 くっさめ sneeze
Noun, Usually written using kana alone 
轡 くつばみ bit (i.e. attached to a bridle)
Out-dated or obsolete kana, Noun 
踝 くるぶし ankle; malleolus
Noun, No-adjective, Usually written using kana alone 
鉄 くろがね iron
Noun 
空域 くういき airspace
Common word, Noun 
空間 くうかん space; room; airspace
Common word, Noun 
空虚 くうきょ emptiness; vacancy
Common word, Na-adjective, Noun 
空軍 くうぐん Air Force
Common word, Noun, No-adjective 

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