Boss, Superior
noun
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.
彼は私の上司です。
He is my boss.
今日は上司とのミーティングがあります。
I have a meeting with my boss today.
まずは上司にアドバイスを聞いてみるのはどうですか。
How about asking your boss for advice first?