The word(s) "falsehood" appears 63 time(s) in 60 verse(s) in Quran in Abdullah Yusuf Ali translation.

(51) Why then was no help forthcoming to them from those whom they worshipped as gods, besides Allah, as a means of access (to Allah)? Nay, they left them in the lurch: but that was their falsehood and their invention.

(52) Woe to the falsehood-mongers,-

(53) Then woe that Day to those that treat (Truth) as falsehood;-

(54) Then will no (soul) entertain falsehood concerning its coming.

(55) "Then will ye truly,- O ye that go wrong, and treat (Truth) as falsehood!-

(56) And if he be of those who treat (Truth) as falsehood, who go wrong,

(57) Turnest thou not thy attention to those who turn (in friendship) to such as have the Wrath of Allah upon them? They are neither of you nor of them, and they swear to falsehood knowingly.

(58) O Prophet! When believing women come to thee to take the oath of fealty to thee, that they will not associate in worship any other thing whatever with Allah, that they will not steal, that they will not commit adultery (or fornication), that they will not kill their children, that they will not utter slander, intentionally forging falsehood, and that they will not disobey thee in any just matter,- then do thou receive their fealty, and pray to Allah for the forgiveness (of their sins): for Allah is Oft-Forgiving, Most Merciful.

(59) Who doth greater wrong than one who invents falsehood against Allah, even as he is being invited to Islam? And Allah guides not those who do wrong.

(60) But those who reject Faith and treat Our Signs as falsehoods, they will be Companions of the Fire, to dwell therein for aye: and evil is that Goal.