等級

N1 同等 doutou equality, equal, same rank N1 階級 kaikyuu class, rank, grade N1 同級 doukyuu the same grade, same class N1 対等 taitou equivalent N2 ～等 ～tou plural persons N2 学級 gakkyuu class N2 高級 koukyuu high class; first-rate N2 高等 koutou high class, high grade N2 高等学校 koutougakkou senior high school

N3 等 tou / hito.shii, nado, -ra etc., and so forth, class (first) N1 級 kyuu class, rank, grade