The word(s) "conspiracy" appears 3 time(s) in 3 verse(s) in Quran in Saheeh International translation.

(1) Said Pharaoh, "You believed in him before I gave you permission. Indeed, this is a conspiracy which you conspired in the city to expel therefrom its people. But you are going to know.

(سورة الأعراف, Al-A'raaf, Chapter #7, Verse #123)
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(2) Those who were oppressed will say to those who were arrogant, "Rather, [it was your] conspiracy of night and day when you were ordering us to disbelieve in Allah and attribute to Him equals." But they will [all] confide regret when they see the punishment; and We will put shackles on the necks of those who disbelieved. Will they be recompensed except for what they used to do?

(سورة سبإ, Saba, Chapter #34, Verse #33)
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(3) And they conspired an immense conspiracy.

(سورة نوح, Nooh, Chapter #71, Verse #22)
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