同等

N1 同級 doukyuu the same grade, same class N1 同居 doukyo living together N1 同情 doujou sympathy, compassion, sympathize N1 対等 taitou equivalent N2 ～等 ～tou plural persons N2 高等 koutou high class, high grade N2 合同 goudou combination, incorporation N2 高等学校 koutougakkou senior high school N2 同～ dou～ same ~

N4 同 dou / ona.ji same, agree, equal N3 等 tou / hito.shii, nado, -ra etc., and so forth, class (first)