The word(s) "ruin" appears 16 time(s) in 15 verse(s) in Quran in Mohsin Khan translation.

(1) And who are more unjust than those who forbid that Allah's Name be glorified and mentioned much (i.e. prayers and invocations, etc.) in Allah's Mosques and strive for their ruin? It was not fitting that such should themselves enter them (Allah's Mosques) except in fear. For them there is disgrace in this world, and they will have a great torment in the Hereafter.

(2) And were Allah to hasten for mankind the evil (they invoke for themselves and for their children. while in a state of anger) as He hastens for them the good (they invoke) then they would have been ruined. So We leave those who expect not their meeting with Us, in their trespasses, wandering blindly in distraction. (Tafsir At-Tabari)

(3) And on the Day when He shall gather (resurrect) them together, (it will be) as if they had not stayed (in the life of this world and graves) but an hour of a day. They will recognise each other. ruined indeed will be those who denied the Meeting with Allah, and were not guided.

(4) So his fruits were encircled (with ruin). And he remained clapping his hands (with sorrow) over what he had spent upon it, while it was all destroyed on its trellises, and he could only say: "Would that I had ascribed no partners to my Lord!" [Tafsir Ibn Kathir]

(5) Whereby the heavens are almost torn, and the earth is split asunder, and the mountains fall in ruins,

(6) Had there been therein (in the heavens and the earth) alihah (gods) besides Allah, then verily both would have been ruined. Glorified be Allah, the Lord of the Throne, (High is He) above all that (evil) they associate with Him!

(7) And many a township did We destroy while it was given to wrong-doing, so that it lies in ruins (up to this day), and (many) a deserted well and lofty castle!

(8) And for each (of them) We put forward examples (as proofs and lessons), and each (of them) We brought to utter ruin (because of their disbelief and evil deeds).

(9) These are their houses in utter ruin, for they did wrong. Verily, in this is indeed an Ayah (a lesson or a sign) for people who know.

(10) And 'Ad and Thamud (people)! And indeed (their destruction) is clearly apparent to you from their (ruined) dwellings. Shaitan (Satan) made their deeds fair-seeming to them, and turned them away from the (Right) Path, though they were intelligent.