Denshi Jisho — Online Japanese dictionary

こくう "grain rain" solar term (approx. April 20)
Noun 
こくそう granary
Common word, Noun 
こくもつ grain; cereal; corn
Common word, Noun, No-adjective 
こくるい grains
Common word, Noun, No-adjective 
こくふん grain (rice) flour
Noun, No-adjective 
の木 かじのき paper mulberry (Broussonetia papyrifera)
Noun, Usually written using kana alone 
こくしょく cereal diet; grain-eating
Noun, Suru verb, No-adjective 
こくりゅう kernel; grain
Noun, No-adjective 
ごくつぶし good-for-nothing; parasite; deadbeat; loafer; drone; idler
Irregular okurigana usage, Noun 
潰し ごくつぶし good-for-nothing; parasite; deadbeat; loafer; drone; idler
Noun 
つぶし ごくつぶし good-for-nothing; parasite; deadbeat; loafer; drone; idler
Noun 
象虫 こくぞうむし maize weevil (Sitophilus zeamais)
Noun, Usually written using kana alone 
倉地帯 こくそうちたい grain-producing region
Noun, No-adjective 

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