Boss
Superior
The director who is above you is your boss or superior.
じょうし
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
その上司のコートは、とても丈夫な生地で出来ていました。
That boss' coat was made of very durable material.
うちの上司は、日本のれきしに大変きょう味があるようです。
It seems that my superior is very interested in Japanese history.
シャークがあなたのこと、名ばかりの上司だと言ってましたよ。
Shark said you are the boss in name only.