The word(s) "disbelieve" appears 631 time(s) in 561 verse(s) in Quran in Mohsin Khan translation.

(491) They intend to put out the Light of Allah (i.e. the Religion of Islam, this Qur'an, and the Prophet Muhammad صلى الله عليه وسلم) with their mouths. But Allah will bring His Light to perfection even though the disbelievers hate (it).

(492) He it is Who has sent His Messenger (Muhammad صلى الله عليه وسلم) with guidance and the religion of truth (Islamic Monotheism) to make it victorious over all (other) religions even though the Mushrikun (polytheists, pagans, idolaters, and disbelievers in the Oneness of Allah and in His Messenger Muhammad صلى الله عليه وسلم) hate (it).

(493) O you who believe! Be you helpers (in the Cause) of Allah as said 'Îsa (Jesus), son of Maryam (Mary), to the Hawariyyun (the disciples): "Who are my helpers (in the Cause) of Allah?" The Hawariyyun (the disciples) said: "We are Allah's helpers" (i.e. we will strive in His Cause!). Then a group of the Children of Israel believed and a group disbelieved. So We gave power to those who believed against their enemies, and they became the victorious (uppermost).

(494) The likeness of those who were entrusted with the (obligation of the) Taurat (Torah) (i.e. to obey its commandments and to practise its laws), but who subsequently failed in those (obligations), is as the likeness of a donkey which carries huge burdens of books (but understands nothing from them). How bad is the example of people who deny the Ayat (proofs, evidence, verses, signs, revelations) of Allah. And Allah guides not the people who are Zalimun (polytheists, wrong-doers, disbelievers).

(495) But they will never long for it (death), because of what (deeds) their hands have sent before them! And Allah knows well the Zalimun (polytheists, wrong-doers, disbelievers).

(496) That is because they believed, and then disbelieved; therefore their hearts are sealed, so they understand not.

(497) He it is Who created you, then some of you are disbelievers and some of you are believers. And Allah is All-Seer of what you do.

(498) Has not the news reached you of those who disbelieved aforetime? And so they tasted the evil result of their disbelief, and theirs will be a painful torment.

(499) That was because there came to them their Messengers with clear proofs (signs), but they said: "Shall mere men guide us?" So they disbelieved and turned away (from the truth). But Allah was not in need (of them). And Allah is Rich (Free of all needs), Worthy of all praise.

(500) The disbelievers pretend that they will never be resurrected (for the Account). Say (O Muhammad صلى الله عليه وسلم): Yes! By my Lord, you will certainly be resurrected, then you will be informed of (and recompensed for) what you did; and that is easy for Allah.