The word(s) "disbelief" appears 110 time(s) in 103 verse(s) in Quran in Mohsin Khan translation.

(81) He it is Who sends Salat (His blessings) on you, and His angels too (ask Allah to bless and forgive you), that He may bring you out from darkness (of disbelief and polytheism) into light (of Belief and Islamic Monotheism). And He is Ever Most Merciful to the believers.

(82) Nor are (alike) darkness (disbelief) and light (Belief in Islamic Monotheism).

(83) He it is Who has made you successors generations after generations in the earth, so whosoever disbelieves (in Islamic Monotheism) on him will be his disbelief. And the disbelief of the disbelievers adds nothing but hatred of their Lord. And the disbelief of the disbelievers adds nothing but loss.

(84) If you disbelieve, then verily, Allah is not in need of you; He likes not disbelief for His slaves. And if you are grateful (by being believers), He is pleased therewith for you. No bearer of burdens shall bear the burden of another. Then to your Lord is your return, and He will inform you what you used to do. Verily, He is the All-Knower of that which is in (men's) breasts.

(85) And when some hurt touches man, he cries to his Lord (Allah Alone), turning to Him in repentance. But when He bestows a favour upon him from Himself, he forgets that for which he cried for before, and he sets up rivals to Allah, in order to mislead others from His Path. Say: "Take pleasure in your disbelief for a while: surely you are (one) of the dwellers of the Fire!"

(86) And We have assigned for them (devils) intimate companions (in this world), who have made fair-seeming to them, what was before them (evil deeds which they were doing in the present worldly life and disbelief in the Reckoning and the Resurrection) and what was behind them (denial of the matters in the coming life of the Hereafter as regards punishment or reward). And the Word (i.e. the torment) is justified against them as it was justified against those who were among the previous generations of jinn and men that had passed away before them. Indeed they (all) were the losers.

(87) Verily, We shall remove the torment for a while. Verily you will revert (to disbelief).

(88) And know that among you there is the Messenger of Allah (صلى الله عليه وسلم). If he were to obey you (i.e. follow your opinions and desires) in much of the matter, you would surely be in trouble. But Allah has endeared the Faith to you and has beautified it in your hearts, and has made disbelief, wickedness and disobedience (to Allah and His Messenger صلى الله عليه وسلم) hateful to you. Such are they who are the rightly guided.

(89) His companion (Satan - devil)] will say: "Our Lord! I did not push him to transgression, (in disbelief, oppression, and evil deeds) but he was himself in error far astray."

(90) Have they (the people of the past) transmitted this saying to these (Quraish pagans)? Nay, they are themselves a people transgressing beyond bounds (in disbelief)!