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

(91) Say (O Muhammad صلى الله عليه وسلم): "Each one (believer and disbeliever.) is waiting, so wait you too; and you shall know who are they that are on the Straight and Even Path (i.e. Allah's religion of Islamic monotheism), and who are they that have let themselves be guided (on the Right Path).

(92) Truly! This, your Ummah [Shari'ah or religion (Islamic monotheism)] is one religion, and I am your Lord, therefore worship Me (Alone). [Tafsir Ibn Kathir]

(93) So whoever does righteous good deeds while he is a believer (in the Oneness of Allah - Islamic monotheism), his efforts will not be rejected. Verily We record it for him (in his Book of deeds).

(94) Verily, in this (the Qur'an) there is a plain Message for people who worship Allah (i.e. the true, real believers of Islamic monotheism who act practically on the Qur'an and the Sunnah - legal ways of the Prophet صلى الله عليه وسلم).

(95) But if they (disbelievers, idolaters, Jews, Christians, polytheists) turn away (from Islamic monotheism) say (to them O Muhammad صلى الله عليه وسلم): "I give you a notice (of war as) to be known to us all alike. And I know not whether that which you are promised (i.e. the torment or the Day of Resurrection) is near or far. "

(96) Truly, Allah will admit those who believe (in Islamic monotheism) and do righteous good deeds (according to the Qur'an and the Sunnah) to Gardens underneath which rivers flow (in Paradise). Verily, Allah does what He wills.

(97) Truly, Allah will admit those who believe (in the Oneness of Allah - Islamic monotheism) and do righteous good deeds, to Gardens underneath which rivers flow (in Paradise), wherein they will be adorned with bracelets of gold and pearls and their garments therein will be of silk.

(98) And they are guided (in this world) unto goodly speech (i.e. La ilaha illallah, Alhamdu lillah, recitation of the Qur'an, etc.) and they are guided to the Path of Him (i.e. Allah's religion of Islamic monotheism), Who is Worthy of all praises.

(99) Verily, those who disbelieved and hinder (men) from the Path of Allah, and from Al-Masjid-al-Haram (at Makkah) which We have made (open) to (all) men, the dweller in it and the visitor from the country are equal there [as regards its sanctity and pilgrimage (Hajj and 'Umrah)] - and whoever inclines to evil actions therein or to do wrong (i.e. practise polytheism and leave Islamic monotheism), him We shall cause to taste from a painful torment.

(100) And (remember) when We showed Ibrahim (Abraham) the site of the (Sacred) House (the Ka'bah at Makkah) (saying): "Associate not anything (in worship) with Me, [La ilaha illallah (none has the right to be worshipped but Allah) - Islamic monotheism], and sanctify My House for those who circumambulate it, and those who stand up (for prayer), and those who bow (submit themselves with humility and obedience to Allah), and make prostration (in prayer);"