Dictionary/一級いっきゅうIkkyuu一級 (Ikkyuu) is a Japanese na-adjective meaning “one grade, first-class, primary”.Meaningsna-adjective, nounone grade; first-class; primaryKanji in 一級一one級classRelated words一寸a little一緒にtogether (with)一one一つone一one一同all present一番number one一人one person第一first一体(what) the heck一緒(doing) together一度once