The word(s) "exist" appears 59 time(s) in 59 verse(s) in Quran in Mohsin Khan translation.

(51) And indeed We did send Musa (Moses) with Our Ayat (proofs, evidence, verses, lessons, signs, revelations, etc.) to Fir'aun (Pharaoh) and his chiefs (inviting them to Allah's religion of Islam) He said: "Verily, I am a Messenger of the Lord of the 'Alamin (mankind, jinn and all that exists)."

(52) So all the praises and thanks be to Allah, the Lord of the heavens and the Lord of the earth, and the Lord of the 'Alamin (mankind, jinn and all that exists).

(53) A Revelation (this Qur'an) from the Lord of the 'Alamin (mankind, jinn and all that exists).

(54) No calamity befalls on the earth or in yourselves but it is inscribed in the Book of Decrees (Al-Lauh Al-Mahfuz) before We bring it into existence. Verily, that is easy for Allah.

(55) (Their allies deceived them) like Shaitan (Satan), when he says to man: "Disbelieve in Allah." But when (man) disbelieves in Allah, Shaitan (Satan) says: "I am free of you, I fear Allah, the Lord of the 'Alamin (mankind, jinn and all that exists)!"

(56) This is the Revelation sent down from the Lord of the 'Alamin (mankind, jinn and all that exists).

(57) And you cannot will unless (it be) that Allah wills - the Lord of the 'Alamin (mankind, jinn and all that exists).

(58) The Day when (all) mankind will stand before the Lord of the 'Alamin (mankind, jinn and all that exists)?

(59) Read! In the Name of your Lord Who has created (all that exists).