The word(s) "liar" appears 53 time(s) in 49 verse(s) in Quran in Muhammad Habib Shakir translation.

(11) And if they call you a liar, say: My work is for me and your work for you; you are clear of what I do and I am clear of what you do.

(12) But the chiefs of those who disbelieved from among his people said: We do not consider you but a mortal like ourselves, and we do not see any have followed you but those who are the meanest of us at first thought and we do not see in you any excellence over us; nay, we deem you liars.

(13) And, O my people! act according to your ability, I too am acting; you will come to know soon who it is on whom will light the punishment that will disgrace him and who it is that is a liar, and watch, surely I too am watching with you.

(14) He said: She sought to make me yield (to her); and a witness of her own family bore witness: If his shirt is rent from front, she speaks the truth and he is one of the liars:

(15) They said: But what shall be the requital of this, if you are liars?

(16) So that He might make manifest to them that about which they differ, and that those who disbelieve might know that they were liars.

(17) And when those who associate (others with Allah) shall see their associate-gods, they shall say: Our Lord, these are our associate-gods on whom we called besides Thee. But they will give them back the reply: Most surely you are liars.

(18) Only they forge the lie who do not believe in Allah's communications, and these are the liars.

(19) He said: O my Lord! help me against their calling me a liar.

(20) He said: O my Lord! help me against their calling me a liar.