The word(s) "fun" appears 18 time(s) in 18 verse(s) in Quran in Mohsin Khan translation.

(11) "And follow not the command of Al-Musrifun [i.e. their chiefs: leaders who were polytheists, criminals and sinners],

(12) They (Messengers) said: "Your evil omens be with you! (Do you call it "evil omen") because you are admonished? Nay, but you are a people Musrifun (transgressing all bounds by committing all kinds of great sins, and by disobeying Allah).

(13) Say (O Muhammad صلى الله عليه وسلم): "No wage do I ask of you for this (the Qur'an), nor am I one of the Mutakallifun (those who pretend and fabricate things which do not exist).

(14) "No doubt you call me to (worship) one who cannot grant (me) my request (or respond to my invocation) in this world or in the Hereafter. And our return will be to Allah, and Al-Musrifun (i.e. polytheists and arrogants, those who commit great sins, the transgressors of Allah's set limits): they shall be the dwellers of the Fire!

(15) Shall We then (warn you not and) take away the Reminder (this Qur'an) from you, because you are a people Musrifun.

(16) From Fir'aun (Pharaoh); verily he was arrogant and was of the Musrifun (those who transgress beyond bound in spending and other things and commit great sins).

(17) Marked by your Lord for the Musrifun (polytheists, criminals, sinners - those who trespass Allah's set limits in evil-doings by committing great sins).

(18) Woe to Al-Mutaffifun (those who give less in measure and weight).