The word(s) "tongue" appears 24 time(s) in 21 verse(s) in Quran in Muhammad Habib Shakir translation.

(11) On the day when their tongues and their hands and their feet shall bear witness against them as to what they did.

(12) And by breast straitens, and my tongue is not eloquent, therefore send Thou to Haroun (to help me);

(13) And my brother, Haroun, he is more eloquent of tongue than I, therefore send him with me as an aider, verifying me: surely I fear that they would reject me.

(14) And one of His signs is the creation of the heavens and the earth and the diversity of your tongues and colors; most surely there are signs in this for the learned.

(15) Being niggardly with respect to you; but when fear comes, you will see them looking to you, their eyes rolling like one swooning because of death; but when the fear is gone they smite you with sharp tongues, being niggardly of the good things. These have not believed, therefore Allah has made their doing naught; and this is easy to Allah.

(16) And if We had made it a Quran in a foreign tongue, they would certainly have said: Why have not its communications been made clear? What! a foreign (tongue) and an Arabian! Say: It is to those who believe a guidance and a healing; and (as for) those who do not believe, there is a heaviness in their ears and it is obscure to them; these shall be called to from a far-off place.

(17) So have We made it easy in your tongue that they may be mindful.

(18) Those of the dwellers of the desert who were left behind will say to you: Our property and our families kept us busy, so ask forgiveness for us. They say with their tongues what is not in their hearts. Say: Then who can control anything for you from Allah if He intends to do you harm or if He intends to do you good; nay, Allah is Aware of what you do:

(19) 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.

(20) Do not move your tongue with it to make haste with it,