開戦かいせん Common Noun Irregular Intransitive Español jmdict 1 noun (common) (futsuumeishi) noun or participle which takes the aux. verb suru intransitive verb apertura de hostilidades;comienzo de la guerra English jmdict 1 noun (common) (futsuumeishi) noun or participle which takes the aux. verb suru intransitive verb outbreak of war;starting a war