al-Laghw is interpreted in three ways:
1. al-Laghw refers to an oath made concerning worldly matters with the conviction that it is true, but which turns out to be false; it is used in this sense in the following verse:
Allah does not impose blame upon you for what is unintentional in your oaths {that is, for the error in oaths you make believing them to be true/for your oaths which turn out to be false though you believed them to be true—because the person does not intend to lie with such an oath}. (al-Baqara 2:225)
A similar usage is found in the surah al-Māʾida.
2. al-Laghw is used in the sense of falsehood, as in the following verses:
They turn away from laghw {that is, from falsehood}. (al-Muʾminūn 23:3)
Do not listen to this Qur'an and speak laghw {that is, utter false words about the Qur'an and spread baseless lies while it is being recited}. Perhaps you will overcome. (Fussilat 41:26)
3. al-Laghw is used in the sense that those who drank wine in this world will not swear oaths in the Hereafter, as in the following verses:
Therein {that is, in Paradise} they will not hear laghw {that is, oaths as made by those who drank wine and became intoxicated in the world}. (Maryam 19:62)
Therein {that is, in Paradise} they will pass around a cup {that is, cups of wine} from hand to hand. In it there will be no laghw {that is, no intoxication or oaths made in a state of drunkenness as in the world}. (al-Tūr 52:23)