The word(s) "disbelievers" appears 347 time(s) in 327 verse(s) in Quran in Mohsin Khan translation.

(131) Do they (the disbelievers and polytheists) await but that the angels should come to them [to take away their souls (at death)], or there should come the command (i.e. the torment or the Day of Resurrection) of your Lord? Thus did those before them. And Allah wronged them not, but they used to wrong themselves.

(132) They recognise the Grace of Allah, yet they deny it (by worshipping others besides Allah) and most of them are disbelievers (deny the Prophethood of Muhammad صلى الله عليه و سلم).

(133) And when those who did wrong (the disbelievers) will see the torment, then it will not be lightened unto them, nor will they be given respite.

(134) And when We change a Verse (of the Qur'an,) in place of another - and Allah knows best what He sends down - they (the disbelievers) say: "You (O Muhammad صلى الله عليه و سلم) are but a Muftari! (forger, liar)." Nay, but most of them know not.

(135) Verily, Ibrahim (Abraham) was an Ummah (a leader having all the good righteous qualities), or a nation, obedient to Allah, Hanif (i.e. to worship none but Allah), and he was not one of those who were Al-Mushrikun (polytheists, idolaters, disbelievers in the Oneness of Allah, and those who joined partners with Allah).

(136) Then, We have sent the revelation to you (O Muhammad صلى الله عليه و سلم saying): "Follow the religion of Ibrahim (Abraham) Hanif (Islamic Monotheism - to worship none but Allah) and he was not of the Mushrikun (polytheists, idolaters and disbelievers).

(137) [And We said in the Taurat (Torah)]: "It may be that your Lord may show mercy unto you, but if you return (to sins), We shall return (to Our Punishment). And We have made Hell a prison for the disbelievers.

(138) And surely, We have explained [Our Promises, Warnings and (set forth many) examples] in this Qur'an that they (the disbelievers) may take heed, but it increases them in naught save aversion.

(139) Say (to the disbelievers): "If you possessed the treasure of the Mercy of my Lord (wealth, money, provision.), then you would surely hold back (from spending) for fear of (being exhausted), and man is ever miserly!"

(140) (He has made it) straight to give warning (to the disbelievers) of a severe punishment from Him, and to give glad tidings to the believers (in the Oneness of Allah - Islamic Monotheism), who do righteous deeds, that they shall have a fair reward (i.e. Paradise).