The word(s) "transgression" appears 16 time(s) in 14 verse(s) in Quran in Mohsin Khan translation.

(1) After this, it is you who kill one another and drive out a party of you from their homes, assist (their enemies) against them, in sin and transgression. And if they come to you as captives, you ransom them, although their expulsion was forbidden to you. Then do you believe in a part of the Scripture and reject the rest? Then what is the recompense of those who do so among you, except disgrace in the life of this world, and on the Day of Resurrection they shall be consigned to the most grievous torment. And Allah is not unaware of what you do.

(2) And fight them until there is no more Fitnah (disbelief and worshipping of others along with Allah) and (all and every kind of) worship is for Allah (Alone). But if they cease, let there be no transgression except against Az-Zalimun (the polytheists, and wrong-doers)

(3) They ask you concerning fighting in the Sacred Months (i.e. 1st, 7th, 11th and 12th months of the Islamic calendar). Say "Fighting therein is a great (transgression) but a greater (transgression) with Allah is to prevent mankind from following the Way of Allah, to disbelieve in Him, to prevent access to Al-Masjid-Al-Haram (at Makkah), and to drive out its inhabitants, and Al-Fitnah is worse than killing. And they will never cease fighting you until they turn you back from your religion (Islamic Monotheism) if they can. And whosoever of you turns back from his religion and dies as a disbeliever, then his deeds will be lost in this life and in the Hereafter, and they will be the dwellers of the Fire. They will abide therein forever."

(4) And they said nothing but: "Our Lord! Forgive us our sins and our transgressions (in keeping our duties to You), establish our feet firmly, and give us victory over the disbelieving folk."

(5) O you who believe! Violate not the sanctity of the Symbols of Allah, nor of the Sacred Month, nor of the animals brought for sacrifice, nor the garlanded people or animals , and others nor the people coming to the Sacred House (Makkah), seeking the bounty and good pleasure of their Lord. But when you finish the Ihram (of Hajj or 'Umrah ), you may hunt, and let not the hatred of some people in (once) stopping you from Al-Masjid-Al-Haram (at Makkah) lead you to transgression (and hostility on your part). Help you one another in Al-Birr and At-Taqwa (virtue, righteousness and piety); but do not help one another in sin and transgression. And fear Allah. Verily, Allah is Severe in punishment.

(6) And you see many of them (Jews) hurrying towards sin and transgression, and eating illegal things [as bribes and Riba (usury)]. Evil indeed is that which they have been doing.

(7) Whomsoever Allah sends astray, none can guide him; and He lets them wander blindly in their transgressions.

(8) (Saying) eat of the Tayyibat (good lawful things) wherewith We have provided you, and commit no transgression or oppression therein, lest My Anger should justly descend on you. And he on whom My Anger descends, he is indeed perished. [Tafsir At-Tabari]

(9) And though We had mercy on them and removed the distress which is on them, still they would obstinately persist in their transgression, wandering blindly.

(10) And they divided not till after knowledge had come to them, through (selfish) transgression between themselves. And had it not been for a Word that went forth before from your Lord for an appointed term, the matter would have been settled between them. And verily, those who were made to inherit the Scripture [i.e. the Taurah (Torah) and the Injeel (Gospel)] after them (i.e. Jews and Christians) are in grave doubt concerning it (i.e. Allah's true religion - Islam or the Qur'an).