The word(s) "falsehood" appears 40 time(s) in 38 verse(s) in Quran in Saheeh International translation.

(1) And do not mix the truth with falsehood or conceal the truth while you know [it].

(2) O People of the Scripture, why do you confuse the truth with falsehood and conceal the truth while you know [it]?

(3) O Messenger, let them not grieve you who hasten into disbelief of those who say, "We believe" with their mouths, but their hearts believe not, and from among the Jews. [They are] avid listeners to falsehood, listening to another people who have not come to you. They distort words beyond their [proper] usages, saying "If you are given this, take it; but if you are not given it, then beware." But he for whom Allah intends fitnah - never will you possess [power to do] for him a thing against Allah. Those are the ones for whom Allah does not intend to purify their hearts. For them in this world is disgrace, and for them in the Hereafter is a great punishment.

(4) [They are] avid listeners to falsehood, devourers of [what is] unlawful. So if they come to you, [O Muhammad], judge between them or turn away from them. And if you turn away from them - never will they harm you at all. And if you judge, judge between them with justice. Indeed, Allah loves those who act justly.

(5) Allah has not appointed [such innovations as] bahirah or sa'ibah or wasilah or ham. But those who disbelieve invent falsehood about Allah, and most of them do not reason.

(6) Indeed, those who took the calf [for worship] will obtain anger from their Lord and humiliation in the life of this world, and thus do We recompense the inventors [of falsehood].

(7) That He should establish the truth and abolish falsehood, even if the criminals disliked it.

(8) And what will be the supposition of those who invent falsehood about Allah on the Day of Resurrection? Indeed, Allah is full of bounty to the people, but most of them are not grateful."

(9) Say, "Indeed, those who invent falsehood about Allah will not succeed."

(10) And to 'Aad [We sent] their brother Hud. He said, "O my people, worship Allah; you have no deity other than Him. You are not but inventors [of falsehood].