The word(s) "ad" appears 2687 time(s) in 1984 verse(s) in Quran in Mohsin Khan translation.

(631) And it was said: "O earth! Swallow up your water, and O sky! Withhold (your rain)." And the water was made to subside and the Decree (of Allah) was fulfilled (i.e. the destruction of the people of Nuh (Noah). And it (the ship) rested on (Mount) Judi, and it was said: "Away with the people who are Zalimun (polytheists and wrong-doers)!"

(632) He said: "O Nuh (Noah)! Surely, he is not of your family; verily, his work is unrighteous, so ask not of Me that of which you have no knowledge! I admonish you lest you should be one of the ignorant."

(633) This is of the news of the Unseen which We reveal unto you (O Muhammad صلى الله عليه و سلم); neither you nor your people knew it before this. So be patient. Surely, the (good) end is for Al-Muttaqun (the pious - See V.2:2)

(634) And to 'ad (people We sent) their brother Hud. He said, "O my people! Worship Allah! You have no other ilah (god) but Him. Certainly, you do nothing but invent lies!

(635) "And O my people! Ask forgiveness of your Lord and then repent to Him, He will send you (from the sky) abundant rain, and add strength to your strength, so do not turn away as Mujrimun (criminals, disbelievers in the Oneness of Allah)."

(636) "All that we say is that some of our gods (false deities) have seized you with evil (madness)." He said: "I call Allah to witness and bear you witness that I am free from that which you ascribe as partners in worship,

(637) Such were 'ad (people). They rejected the Ayat (proofs, evidence, verses, lessons, signs, revelations, etc.) of their Lord and disobeyed His Messengers, and followed the command of every proud obstinate (oppressor of the truth, from their leaders).

(638) And they were pursued by a curse in this world and (so they will be) on the Day of Resurrection. No doubt! Verily, 'ad disbelieved in their Lord. So away with 'ad, the people of Hud.

(639) And As-Saihah (torment - awful cry) overtook the wrong-doers, so they lay (dead), prostrate in their homes,

(640) As if they had never lived there. No doubt! Verily, Thamud disbelieved in their Lord. So away with Thamud!