Denshi Jisho — Online Japanese dictionary

死ぬ しぬ to die
Common word, Godan verb with nu ending, Irregular nu verb, Intransitive verb, Sensitive 
死ぬ迄戦う しぬまでたたかう to fight to the last (death)
Godan verb with u ending 
死ぬまで戦う しぬまでたたかう to fight to the last (death)
Godan verb with u ending 

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