The word(s) "monotheism" appears 283 time(s) in 267 verse(s) in Quran in Mohsin Khan translation.

(111) Nay, but We have brought them the truth (Islamic monotheism), and verily, they (disbelievers) are liars.

(112) The adulterer-fornicator marries not but an adulteress-fornicatress or a Mushrikah, and the adulteress-fornicatress none marries her except an adulterer-fornicator or a Muskrik [and that means that the man who agrees to marry (have a sexual relation with) a Mushrikah (female polytheist, pagan or idolatress) or a prostitute, then surely he is either an adulterer-fornicator, or a Mushrik (polytheist, pagan or idolater). And the woman who agrees to marry (have a sexual relation with) a Mushrik (polytheist, pagan or idolater) or an adulterer-fornicator, then she is either a prostitute or a Mushrikah (female polytheist, pagan, or idolatress)]. Such a thing is forbidden to the believers (of Islamic monotheism).

(113) We have indeed sent down (in this Qur'an) manifest Ayat (proofs, evidence, verses, lessons, signs, revelations, lawful and unlawful things, and the set boundaries of Islamic religion, etc. that make things clear showing the Right Path of Allah). And Allah guides whom He wills to the Straight Path (i.e. to Allah's religion of Islamic monotheism).

(114) The sovereignty on that Day will be the true (sovereignty), belonging to the Most Gracious (Allah), and it will be a hard Day for the disbelievers (those who disbelieve in the Oneness of Allah - Islamic monotheism).

(115) Except those who repent and believe (in Islamic monotheism), and do righteous deeds; for those, Allah will change their sins into good deeds, and Allah is Oft-Forgiving, Most Merciful.

(116) It may be that you (O Muhammad صلى الله عليه وسلم) are going to kill yourself with grief, that they do not become believers [in your Risalah (Messengership) i.e. in your Message of Islamic monotheism].

(117) "Verily we really hope that our Lord will forgive us our sins, as we are the first of the believers [in Musa (Moses) and in the monotheism which he has brought from Allah]."

(118) "No reward do I ask of you for it (my Message of Islamic monotheism); my reward is only from the Lord of the 'Alamin (mankind, jinn and all that exists).

(119) "No reward do I ask of you for it (my Message of Islamic monotheism); my reward is only from the Lord of the 'Alamin (mankind, jinn, and all that exists).

(120) "No reward do I ask of you for it (my Message of Islamic monotheism); my reward is only from the Lord of the 'Alamin (mankind, jinn and all that exists).