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

(11) 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."

(12) Say (O Muhammad صلى الله عليه وسلم to mankind): "If you (really) love Allah then follow me (i.e. accept Islamic monotheism, follow the Qur'an and the Sunnah), Allah will love you and forgive you your sins. And Allah is Oft-Forgiving, Most Merciful."

(13) Ibrahim (Abraham) was neither a Jew nor a Christian, but he was a true Muslim Hanifa (Islamic monotheism - to worship none but Allah Alone) and he was not of Al-Mushrikun (See V.2:105) .

(14) Do they seek other than the religion of Allah (the true Islamic monotheism - worshipping none but Allah Alone), while to Him submitted all creatures in the heavens and the earth, willingly or unwillingly. And to Him shall they all be returned.

(15) Say (O Muhammad صلى الله عليه وسلم): "Allah has spoken the truth; follow the religion of Ibrahim (Abraham) Hanifa (Islamic monotheism, i.e. he used to worship Allah Alone), and he was not of Al-Mushrikun " (See V.2:105)

(16) Let there arise out of you a group of people inviting to all that is good (Islam), enjoining Al-Ma'ruf (i.e. Islamic monotheism and all that Islam orders one to do) and forbidding Al-Munkar (polytheism and disbelief and all that Islam has forbidden). And it is they who are the successful.

(17) You [true believers in Islamic monotheism, and real followers of Prophet Muhammad صلى الله عليه وسلم) and his Sunnah] are the best of peoples ever raised up for mankind; you enjoin Al-Ma'ruf (i.e. Islamic monotheism and all that Islam has ordained) and forbid Al-Munkar (polytheism, disbelief and all that Islam has forbidden), and you believe in Allah . And had the people of the Scripture (Jews and Christians) believed, it would have been better for them; among them are some who have faith, but most of them are Al-Fasiqun (disobedient to Allah - and rebellious against Allah's Command).

(18) They believe in Allah and the Last Day; they enjoin Al-Ma'ruf (Islamic monotheism, and following Prophet Muhammad صلى الله عليه وسلم) and forbid Al-Munkar (polytheism, disbelief and opposing Prophet Muhammad صلى الله عليه وسلم); and they hasten in (all) good works; and they are among the righteous.

(19) "Our Lord! Verily, we have heard the call of one (Muhammad صلى الله عليه وسلم) calling to Faith: 'Believe in your Lord,' and we have believed. Our Lord! Forgive us our sins and expiate from us our evil deeds, and make us die (in the state of righteousness) along with Al-Abrar (the pious believers of Islamic monotheism).

(20) But, for those who fear their Lord, are Gardens under which rivers flow (in Paradise); therein are they to dwell (for ever), an entertainment from Allah; and that which is with Allah is the Best for Al-Abrar (the pious believers of Islamic monotheism).