The word(s) "disbeliever" appears 377 time(s) in 355 verse(s) in Quran in Mohsin Khan translation.

(71) This is (the torment), so taste it; and surely for the disbelievers is the torment of the Fire.

(72) This (is the fact) and surely, Allah weakens the deceitful plots of the disbelievers.

(73) (O disbelievers) if you ask for a judgement, now has the judgement come unto you; and if you cease (to do wrong), it will be better for you, and if you return (to the attack), so shall We return, and your forces will be of no avail to you, however numerous they be; and verily, Allah is with the believers.

(74) Verily! The worst of (moving) living creatures with Allah are the deaf and the dumb, who understand not (i.e. the disbelievers).

(75) And (remember) when the disbelievers plotted against you (O Muhammad صلى الله عليه وسلم) to imprison you, or to kill you, or to get you out (from your home, i.e. Makkah); they were plotting and Allah too was plotting; and Allah is the Best of those who plot.

(76) In order that Allah may distinguish the wicked (disbelievers, polytheists and doers of evil deeds) from the good (believers of Islamic Monotheism and doers of righteous deeds), and put the wicked (disbelievers, polytheists and doers of evil deeds) one over another, heap them together and cast them into Hell. Those! it is they who are the losers.

(77) And (remember) when you met (the army of the disbelievers on the Day of the battle of Badr), He showed them to you as few in your eyes and He made you appear as few in their eyes, so that Allah might accomplish a matter already ordained (in His Knowledge), and to Allah return all matters (for decision).

(78) O Prophet (Muhammad صلى الله عليه وسلم)! Urge the believers to fight. If there are twenty steadfast persons amongst you, they will overcome two hundreds, and if there be a hundred steadfast persons they will overcome a thousand of those who disbelieve, because they (the disbelievers) are people who do not understand.

(79) Freedom from (all) obligations (is declared) from Allah and His Messenger (صلى الله عليه وسلم) to those of the Mushrikun (polytheists, pagans, idolaters, disbelievers in the Oneness of Allah), with whom you made a treaty.

(80) So travel freely (O Mushrikun - See V.2:105) for four months (as you will) throughout the land, but know that you cannot escape (from the punishment of) Allah; and Allah will disgrace the disbelievers.