The word(s) "error" appears 53 time(s) in 53 verse(s) in Quran in Mohsin Khan translation.

(21) For Him (Allah, Alone) is the Word of Truth (i.e. none has the right to be worshipped but Allah). And those whom they (polytheists and disbelievers) invoke, answer them no more than one who stretches forth his hand (at the edge of a deep well) for water to reach his mouth, but it reaches him not; and the invocation of the disbelievers is nothing but an error (i.e. of no use).

(22) [Iblis (Satan)] said: "O my Lord! Because you misled me, I shall indeed adorn the path of error for them (mankind) on the earth, and I shall mislead them all.

(23) How clearly will they (polytheists and disbelievers in the Oneness of Allah) see and hear the Day when they will appear before Us! But the Zalimun (polytheists and wrong-doers) today are in plain error.

(24) Say (O Muhammad صلى الله عليه وسلم) whoever is in error, the Most Gracious (Allah) will extend (the rope) to him, until, when they see that which they were promised, either the torment or the Hour, they will come to know who is worst in position, and who is weaker in forces. [This is the answer to the question in Verse No.19:73]

(25) He said: "Indeed, you and your fathers have been in manifest error."

(26) The greatest terror (on the Day of Resurrection) will not grieve them, and the angels will meet them, (with the greeting): "This is your Day which you were promised."

(27) So leave them in their error for a time.

(28) Then they will be thrown on their faces into the (Fire), they and the Ghawun (devils, and those who were in error).

(29) By Allah, we were truly in a manifest error,

(30) And none has brought us into error except the Mujrimun [Iblis (Satan) and those of human beings who commit crimes, murderers, polytheists, oppressors].