The word(s) "oneness" appears 187 time(s) in 175 verse(s) in Quran in Mohsin Khan translation.

(41) Those who believed (in the oneness of Allah - Islamic Monotheism), and work righteousness, Tuba (all kinds of happiness or name of a tree in Paradise) is for them and a beautiful place of (final) return.

(42) Alif-Lam-Ra. [These letters are one of the miracles of the Qur'an, and none but Allah (Alone) knows their meanings]. (This is) a Book which We have revealed unto you (O Muhammad صلى الله عليه و سلم) in order that you might lead mankind out of darkness (of disbelief and polytheism) into light (of belief in the oneness of Allah and Islamic Monotheism) by their Lord's Leave to the Path of the All-Mighty, the Owner of all Praise.

(43) And they (the Messengers) sought victory and help [from their Lord (Allah)]; and every obstinate, arrogant dictator (who refuses to believe in the oneness of Allah) was brought to a complete loss and destruction.

(44) And those who believed (in the oneness of Allah and His Messengers and whatever they brought) and did righteous deeds, will be made to enter Gardens under which rivers flow, - to dwell therein for ever (i.e. in Paradise), with the Permission of their Lord. Their greeting therein will be: Salam (peace!).

(45) And you will see the Mujrimun (criminals, disbelievers in the oneness of Allah - Islamic Monotheism, polytheists) that Day Muqarranun (bound together) in fetters.

(46) Your Ilah (God) is One Ilah (God - Allah, none has the right to be worshipped but He). But for those who believe not in the Hereafter, their hearts deny (the faith in the oneness of Allah), and they are proud.

(47) In order that He may make manifest to them the truth of that wherein they differ, and that those who disbelieved (in Resurrection, and in the oneness of Allah) may know that they were liars.

(48) And We sent not (as Our Messengers) before you (O Muhammad صلى الله عليه و سلم) any but men, whom We sent revelation, (to preach and invite mankind to believe in the oneness of Allah). So ask (you, O pagans of Makkah) of those who know the Scripture [learned men of the Taurat (Torah) and the Injeel (Gospel)], if you know not.

(49) Do they not see the birds held (flying) in the midst of the sky? None holds them but Allah [none gave them the ability to fly but Allah]. Verily, in this are clear Ayat (proofs and signs) for people who believe (in the oneness of Allah).

(50) And be not like her who undoes the thread which she has spun, after it has become strong, by taking your oaths as a means of deception among yourselves, lest a nation should be more numerous than another nation. Allah only tests you by this [i.e who obeys Allah and fulfils Allah's Covenant and who disobeys Allah and breaks Allah's Covenant]. And on the Day of Resurrection, He will certainly make clear to you that wherein you used to differ [i.e. a believer confesses and believes in the oneness of Allah and in the Prophethood of Prophet Muhammad صلى الله عليه و سلم which the disbeliever denies and that is their difference amongst them in the life of this world] .