Dictionary/甲種こうしゅKoushu甲種 (Koushu) is a Japanese noun meaning “A-grade, first-class”.MeaningsnounA-grade; first-classKanji in 甲種甲armor種speciesRelated words種seed (e.g. of a plant)種類variety甲斐result (that makes an act worthwhile)鎧armor甲子園Koshien Stadium (baseball park in Nishinomiya, Hyōgo Prefecture)遣り甲斐value in doing something一種a kind生きがいreason for living人種race (of people)種族race兜helmet (of a warrior)甲carapace