Denshi Jisho — Online Japanese dictionary

くだく to break; to smash
Common word, Godan verb with ku ending, Transitive verb 
摧く くだく to break; to smash
Godan verb with ku ending, Transitive verb 
くだけ familiar (informal) (speech style)
Noun 
くだく tediously; lengthily; wordily
Adverb taking the 'to' particle, Onomatopoeic or mimetic word 
さいせき broken stone; rubble
Common word, Noun, Suru verb 
さいこう crushing ore
Noun, Suru verb 
さいへん debris
Noun 
ける くだける 1: to break (into pieces); to be broken; to be smashed;
2: to collapse; to crumble; to decline; to cool (e.g. enthusiasm); to dampen (e.g. one's will to fight);
3: to become less formal; to throw off reserve; to become affable;
4: to become easy to understand (e.g. a story);
5: to be worried
Common word, Ichidan verb, Intransitive verb 
けた くだけた 1: easy (e.g. explanation, description); plain; familiar;
2: informal (e.g. greeting, expression); friendly; affable (e.g. person)
Noun or verb acting prenominally 
さいひょう ice breaking
Noun, Suru verb, No-adjective 
岩機 さいがんき rock crusher
Noun 
け散る くだけちる to be smashed up
Godan verb with ru ending 
くだくだしい tedious; lengthy; wordy; long-winded
Adjective 
屑岩 さいせつがん clastic rock
Noun 
屑物 さいせつぶつ clastic material
Noun 
屑丘 さいせつきゅう pyroclastic cone
Noun 
氷艦 さいひょうかん naval ice-breaker
Noun 
氷船 さいひょうせん ice breaker
Noun 
けた会話 くだけたかいわ casual conversation
Noun 
けた態度 くだけたたいど friendly attitude
Noun 
けた文章 くだけたぶんしょう plain (informal) writing
Noun 

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