The word(s) "veil" appears 18 time(s) in 18 verse(s) in Quran in Abdullah Yusuf Ali translation.

(1) Allah hath set a seal on their hearts and on their hearing, and on their eyes is a veil; great is the penalty they (incur).

(2) Of them there are some who (pretend to) listen to thee; but We have thrown veils on their hearts, So they understand it not, and deafness in their ears; if they saw every one of the signs, not they will believe in them; in so much that when they come to thee, they (but) dispute with thee; the Unbelievers say: "These are nothing but tales of the ancients."

(3) Between them shall be a veil, and on the heights will be men who would know every one by his marks: they will call out to the Companions of the Garden, "peace on you": they will not have entered, but they will have an assurance (thereof).

(4) Your Guardian-Lord is Allah, Who created the heavens and the earth in six days, and is firmly established on the throne (of authority): He draweth the night as a veil o'er the day, each seeking the other in rapid succession: He created the sun, the moon, and the stars, (all) governed by laws under His command. Is it not His to create and to govern? Blessed be Allah, the Cherisher and Sustainer of the worlds!

(5) Do they then feel secure from the coming against them of the covering veil of the wrath of Allah,- or of the coming against them of the (final) Hour all of a sudden while they perceive not?

(6) And it is He who spread out the earth, and set thereon mountains standing firm and (flowing) rivers: and fruit of every kind He made in pairs, two and two: He draweth the night as a veil o'er the Day. Behold, verily in these things there are signs for those who consider!

(7) When thou dost recite the Qur'an, We put, between thee and those who believe not in the Hereafter, a veil invisible:

(8) Then We draw (a veil) over their ears, for a number of years, in the Cave, (so that they heard not):

(9) And who doth more wrong than one who is reminded of the Signs of his Lord, but turns away from them, forgetting the (deeds) which his hands have sent forth? Verily We have set veils over their hearts lest they should understand this, and over their ears, deafness, if thou callest them to guidance, even then will they never accept guidance.

(10) (Unbelievers) whose eyes had been under a veil from remembrance of Me, and who had been unable even to hear.