advanced, higher-level, senior
被告は上級裁判所に控訴するだろう。
The defendant will likely appeal to a higher court.
けれど、やがて落ち着いて、上級リーダーのパヴェルソンにとてもよく似た姿になった。
But eventually, it calmed down and took on a form very much like that of the senior leader, Pavelson.
上級ユーザーになってくれたらいいのにな。
I wish you'd become an advanced user.