助演じょえん Common Noun Irregular Transitive Intransitive English jmdict 1 noun (common) (futsuumeishi) noun or participle which takes the aux. verb suru transitive verb intransitive verb supporting performance;playing a supporting role 彼女はアカデミー賞の最優秀助演女優にノミネートされた。 She won an Oscar nomination for best supporting actress.