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

(551) Nay! The disbelievers (persisted) in denying (Prophet Muhammad صلى الله عليه وسلم and his Message of Islamic Monotheism).

(552) So give a respite to the disbelievers; deal gently with them for a while.

(553) Some faces, that Day will be humiliated (in the Hell-fire, i.e. the faces of all disbelievers, Jews and Christians).

(554) Save the one who turns away and disbelieves.

(555) And none will bind (the wicked, disbelievers and polytheists) as He will bind.

(556) But those who disbelieved in Our Ayat (proofs, evidence, verses, lessons, signs, revelations, etc.), they are those on the Left Hand (the dwellers of Hell).

(557) Then what (or who) causes you (O disbelievers) to deny the Recompense (i.e. the Day of Resurrection)?

(558) Those who disbelieve from among the people of the Scripture (Jews and Christians) and Al-Mushrikun, were not going to leave (their disbelief) until there came to them clear evidence.

(559) Verily, those who disbelieve (in the religion of Islam, the Qur'an and Prophet Muhammad صلى الله عليه وسلم) from among the people of the Scripture (Jews and Christians) and Al-Mushrikun will abide in the Fire of Hell. They are the worst of creatures.

(560) Verily, man (disbeliever) is ungrateful to his Lord.