平
1
something broad and flat
人は昔地球は平だと思っていた。
People once held that the world was flat.
2
common;ordinary;plain;rank-and-file
3
low-ranking employee;freshman;novice;private
See also:
平社員 (ひらしゃいん)
他の役職なんて残ってないし。あとは平部員だけだよ。
Well there aren't any other positions left. After that, all that is left is basic member.