同封

N1 混同 kondou confusion, mixing, merger N1 同調 douchou sympathy, agree with, alignment N1 同等 doutou equality, equal, same rank N1 同盟 doumei alliance, union, league N1 一同 ichidou all present, all concerned, all of us N1 同い年 onaidoshi of the same age N1 同意 doui agreement, consent; same meaning N1 同感 doukan agreement, same opinion, same feeling N1 同級 doukyuu the same grade, same class

N4 同 dou / ona.ji same, agree, equal N2 封 fuu, hou seal, closing, sceller