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

(21) Then after that, whosoever shall invent a lie against Allah, ... such shall indeed be the Zalimun (disbelievers).

(22) In it are manifest signs (for example), the Maqam (place) of Ibrahim (Abraham); whosoever enters it, he attains security. And Hajj (pilgrimage to Makkah) to the House (Ka'bah ) is a duty that mankind owes to Allah, those who can afford the expenses (for one's conveyance, provision and residence); and whoever disbelieves [i.e. denies Hajj (pilgrimage to Makkah), then he is a disbeliever of Allah], then Allah stands not in need of any of the 'Alamin (mankind, jinn and all that exists) .

(23) O you who believe! If you obey a group of those who were given the Scripture (Jews and Christians), they would (indeed) render you disbelievers after you have believed!

(24) And fear the Fire, which is prepared for the disbelievers.

(25) Many similar ways (and mishaps of life) were faced by nations (believers and disbelievers) that have passed away before you (as you have faced in the battle of Uhud), so travel through the earth, and see what was the end of those who disbelieved (in the Oneness of Allah, and disobeyed Him and His Messengers).

(26) And that Allah may test (or purify) the believers (from sins) and destroy the disbelievers.

(27) Muhammad (صلى الله عليه وسلم) is no more than a Messenger, and indeed (many) Messengers have passed away before him. If he dies or is killed, will you then turn back on your heels (as disbelievers)? And he who turns back on his heels, not the least harm will he do to Allah; and Allah will give reward to those who are grateful.

(28) It is only Shaitan (Satan) that suggests to you the fear of his Auliya' [supporters and friends (polytheists, disbelievers in the Oneness of Allah and in His Messenger, Muhammad صلى الله عليه وسلم)]; so fear them not, but fear Me, if you are (true) believers.

(29) And let not the disbelievers think that Our postponing of their punishment is good for them. We postpone the punishment only so that they may increase in sinfulness. And for them is a disgracing torment.

(30) Let not the free disposal (and affluence) of the disbelievers throughout the land deceive you.