The word(s) "covering" appears 17 time(s) in 16 verse(s) in Quran in Mohsin Khan translation.

(1) Allah has set a seal on their hearts and on their hearing, (i.e. they are closed from accepting Allah's Guidance), and on their eyes there is a covering. Theirs will be a great torment.

(2) Because of their breaking the covenant, and of their rejecting the Ayat (proofs, evidence, verses, lessons, signs, revelations, etc.) of Allah, and of their killing the Prophets unjustly, and of their saying: "Our hearts are wrapped (with coverings, i.e. we do not understand what the Messengers say)" - nay, Allah has set a seal upon their hearts because of their disbelief, so they believe not but a little.

(3) Theirs will be a bed of Hell (Fire), and over them coverings (of Hell-fire). Thus do We recompense the Zalimun (polytheists and wrong-doers).

(4) Do they then feel secure from the coming against them of the covering veil of the Torment of Allah, or of the coming against them of the (Final) Hour, all of a sudden while they perceive not?

(5) And We have put coverings over their hearts lest they should understand it (the Qur'an), and in their ears deafness. And when you make mention of your Lord Alone [La ilaha illallah (none has the right to be worshipped but Allah) Islamic Monotheism (توحيد الله)] in the Qur'an, they turn on their backs, fleeing in extreme dislike.

(6) (To) those whose eyes had been under a covering from My Reminder (this Qur'an), and who could not bear to hear (it).

(7) Then they both ate of the tree, and so their private parts became manifest to them, and they began to cover themselves with the leaves of the Paradise for their covering. Thus did Adam disobey his Lord, so he went astray.

(8) And it is He Who makes the night a covering for you, and the sleep (as) a repose, and makes the day Nushur (i.e. getting up and going about here and there for daily work, after one's sleep at night, or like resurrection after one's death).

(9) It was said to her: "Enter As-Sarh" (a glass surface with water underneath it or a palace): but when she saw it, she thought it was a pool, and she (tucked up her clothes) uncovering her legs. (Sulaiman (Solomon)) said: "Verily, it is a Sarh (a glass surface with water underneath it or a palace)." She said: "My Lord! Verily, I have wronged myself, and I submit [in Islam, together with Sulaiman (Solomon)] to Allah, the Lord of the 'Alamin (mankind, jinn and all that exists)."

(10) They shall have coverings of Fire, above them and covering (of Fire) beneath them. With this Allah does frighten His slaves: "O My slaves, therefore fear Me!"