The word(s) "chief" appears 78 time(s) in 70 verse(s) in Quran in Mohsin Khan translation.

(31) "And O my people! Give full measure and weight in justice and reduce not the things that are due to the people, and do not commit mischief in the land, causing corruption.

(32) To Fir'aun (Pharaoh) and his chiefs, but they followed the command of Fir'aun (Pharaoh), and the command of Fir'aun (Pharaoh) was no right guide.

(33) They said: "By Allah! Indeed you know that we came not to make mischief in the land, and we are no thieves!"

(34) And those who break the Covenant of Allah, after its ratification, and sever that which Allah has commanded to be joined (i.e. they sever the bond of kinship and are not good to their relatives), and work mischief in the land, on them is the curse (i.e. they will be far away from Allah's Mercy), and for them is the unhappy (evil) home (i.e. Hell) .

(35) And they all shall appear before Allah (on the Day of Resurrection); then the weak will say to those who were arrogant (chiefs): "Verily, we were following you; can you avail us anything against Allah's Torment?" They will say: "Had Allah guided us, we would have guided you. It makes no difference to us (now) whether we rage, or bear (these torments) with patience; there is no place of refuge for us."

(36) And We decreed for the Children of Israel in the Scripture: indeed you would do mischief in the land twice and you will become tyrants and extremely arrogant!

(37) They said: "O Dhul-Qarnain! Verily Ya'juj and Ma'juj (Gog and Magog) are doing great mischief in the land. Shall we then pay you a tribute in order that you might erect a barrier between us and them?"

(38) They said: "Verily these are two magicians. Their object is to drive you out from your land with magic, and overcome your chiefs and nobles.

(39) [Fir'aun (Pharaoh)] said: "Believe you in him [Musa (Moses)] before I give you permission? Verily he is your chief who has taught you magic. So I will surely cut off your hands and feet on opposite sides, and I will surely crucify you on the trunks of date-palms, and you shall surely know which of us [I (Fir'aun - Pharaoh) or the Lord of Musa (Moses) (Allah)] can give the severe and more lasting torment."

(40) But the chiefs of his people who disbelieved said: "He is no more than a human being like you, he seeks to make himself superior to you. Had Allah willed, He surely could have sent down angels. Never did we hear such a thing among our fathers of old.