勢ぞろいせいぞろい Common Noun Irregular Intransitive English jmdict 1 noun (common) (futsuumeishi) noun or participle which takes the aux. verb suru intransitive verb assembling (in full force);muster;lining up;gathering;getting together Other forms 勢揃い 【せいぞろい】 · 勢揃 【せいぞろい】 (search-only kanji form)