一閃いっせん Noun Irregular Transitive Intransitive English jmdict 1 noun (common) (futsuumeishi) noun or participle which takes the aux. verb suru transitive verb intransitive verb flash (of light);glint 2 noun (common) (futsuumeishi) noun or participle which takes the aux. verb suru transitive verb intransitive verb sports swift strike;quick decisive move