Denshi Jisho — Online Japanese dictionary

降河魚 こうかぎょ catadromous fish (fish that migrates downstream, e.g. eel)
Noun 
好角家 こうかくか sumo fan
Noun 
硬化剤 こうかざい hardener; curative agent; stiffening agent
Noun 
高架線 こうかせん 1: overhead wires;
2: elevated railway
Noun 
好下物 こうかぶつ favorite snack to have with drinks; favourite snack to have with drinks
Noun 
交換器 こうかんき (telephone) switchboard
Noun 
交換機 こうかんき switch
Noun, Computer terminology 
高感度 こうかんど high sensitive (e.g. film, radio receiver)
Noun 
工学科 こうがくか engineering department
Noun 
工学士 こうがくし Bachelor of Engineering
Noun 
高画質 こうがしつ high resolution (of an image)
Noun, Computer terminology 
恒河沙 こうがしゃ 1: 10^52 (or 10^56);
2: innumerable
Irregular kana usage, Noun 
弘徽殿 こうきでん ladies' pavilion (of the inner Heian Palace)
Noun 
高機能 こうきのう high level (of functionality)
Na-adjective 
高金利 こうきんり expensive money; dear money; high interest
Noun 
講義室 こうぎしつ lecture hall; lecture room
Noun 
抗議文 こうぎぶん written protest
Noun 
講義録 こうぎろく lecture transcript
Noun 
航空路 こうくうろ air route
Noun 
工具入 こうぐいれ toolbox
Noun 
口径比 こうけいひ aperture ratio (inverse of the f-number); relative aperture
Noun 
絞刑吏 こうけいり hangman
Noun 
好結果 こうけっか good results or outcome
Noun 
後見座 こうけんざ back-right corner of rear stage (area behind main noh stage); stage attendant's spot
Noun 
攻撃機 こうげきき attack aircraft
Noun 
光行差 こうこう (astronomical) aberration
Noun 

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