لِسَانهُم
Appears 2 times in the Quran.
(Root: لسن)
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3:78 وَإِنَّ مِنْهُمْ لَفَرِيقًا يَلْوُۥنَ أَلْسِنَتَهُم بِٱلْكِتَٰبِ لِتَحْسَبُوهُ مِنَ ٱلْكِتَٰبِ وَمَا هُوَ مِنَ ٱلْكِتَٰبِ وَيَقُولُونَ هُوَ مِنْ عِندِ ٱللَّهِ وَمَا هُوَ مِنْ عِندِ ٱللَّهِ وَيَقُولُونَ عَلَى ٱللَّهِ ٱلْكَذِبَ وَهُمْ يَعْلَمُونَ
Most surely there is a party amongst those who distort the Book with their tongue that you may consider it to be (a part) of the Book, and they say, It is from Allah, while it is not from Allah, and they tell a lie against Allah whilst they know.
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60:2 إِن يَثْقَفُوكُمْ يَكُونُوا۟ لَكُمْ أَعْدَآءً وَيَبْسُطُوٓا۟ إِلَيْكُمْ أَيْدِيَهُمْ وَأَلْسِنَتَهُم بِٱلسُّوٓءِ وَوَدُّوا۟ لَوْ تَكْفُرُونَ
If they find you, they will be your enemies, and will stretch forth towards you their hands and their tongues with evil, and they ardently desire that you may disbelieve.