The word(s) "believer" appears 651 time(s) in 556 verse(s) in Quran in Mohsin Khan translation.

(11) Say (O Muhammad صلى الله عليه وسلم): "Whoever is an enemy to Jibril (Gabriel) (let him die in his fury), for indeed he has brought it (this Qur'an) down to your heart by Allah's Permission, confirming what came before it [i.e. the Taurat (Torah) and the Injeel (Gospel)] and guidance and glad tidings for the believers.

(12) Whoever is an enemy to Allah, His Angels, His Messengers, Jibril (Gabriel) and Mika'il (Michael), then verily, Allah is an enemy to the disbelievers."

(13) O you who believe! Say not (to the Messenger صلى الله عليه وسلم) Ra'ina but say Unzurna (make us understand) and hear. And for the disbelievers there is a painful torment. (See Verse 4:46)

(14) Neither those who disbelieve among the people of the Scripture (Jews and Christians) nor Al-Mushrikun (the idolaters, polytheists, disbelievers in the Oneness of Allah, pagans, etc.) like that there should be sent down unto you any good from your Lord. But Allah chooses for His Mercy whom He wills. And Allah is the Owner of Great Bounty.

(15) Many of the people of the Scripture (Jews and Christians) wish that if they could turn you away as disbelievers after you have believed, out of envy from their ownselves, even after the truth (that Muhammad صلى الله عليه وسلم is Allah's Messenger) has become manifest unto them. But forgive and overlook, till Allah brings His Command. Verily, Allah is Able to do all things.

(16) Thus We have made you [true Muslims - real believers of Islamic Monotheism, true followers of Prophet Muhammad صلى الله عليه وسلم and his Sunnah (legal ways)], a just (and the best) nation, that you be witnesses over mankind and the Messenger (Muhammad صلى الله عليه وسلم) be a witness over you. And We made the Qiblah (prayer direction towards Jerusalem) which you used to face, only to test those who followed the Messenger (Muhammad صلى الله عليه وسلم) from those who would turn on their heels (i.e. disobey the Messenger). Indeed it was great (heavy) except for those whom Allah guided. And Allah would never make your faith (prayers) to be lost (i.e. your prayers offered towards Jerusalem). Truly, Allah is full of Kindness, the Most Merciful towards mankind.

(17) Verily, those who disbelieve, and die while they are disbelievers, it is they on whom is the Curse of Allah and of the angels and of mankind, combined.

(18) And kill them wherever you find them, and turn them out from where they have turned you out. And Al-Fitnah is worse than killing. And fight not with them at Al-Masjid-Al-Haram (the sanctuary at Makkah), unless they (first) fight you there. But if they attack you, then kill them. Such is the recompense of the disbelievers.

(19) They ask you concerning fighting in the Sacred Months (i.e. 1st, 7th, 11th and 12th months of the Islamic calendar). Say "Fighting therein is a great (transgression) but a greater (transgression) with Allah is to prevent mankind from following the Way of Allah, to disbelieve in Him, to prevent access to Al-Masjid-Al-Haram (at Makkah), and to drive out its inhabitants, and Al-Fitnah is worse than killing. And they will never cease fighting you until they turn you back from your religion (Islamic Monotheism) if they can. And whosoever of you turns back from his religion and dies as a disbeliever, then his deeds will be lost in this life and in the Hereafter, and they will be the dwellers of the Fire. They will abide therein forever."

(20) Your wives are a tilth for you, so go to your tilth, when or how you will, and send (good deeds, or ask Allah to bestow upon you pious offspring) for your ownselves beforehand. And fear Allah, and know that you are to meet Him (in the Hereafter), and give good tidings to the believers (O Muhammad صلى الله عليه وسلم)