The word ربا in the Quran

ٱلَّذِينَ يَأْكُلُونَ ٱلرِّبَوٰا۟ لَا يَقُومُونَ إِلَّا كَمَا يَقُومُ ٱلَّذِى يَتَخَبَّطُهُ ٱلشَّيْطَٰنُ مِنَ ٱلْمَسِّ ذَٰلِكَ بِأَنَّهُمْ قَالُوٓا۟ إِنَّمَا ٱلْبَيْعُ مِثْلُ ٱلرِّبَوٰا۟ وَأَحَلَّ ٱللَّهُ ٱلْبَيْعَ وَحَرَّمَ ٱلرِّبَوٰا۟ فَمَن جَآءَهُۥ مَوْعِظَةٌ مِّن رَّبِّهِۦ فَٱنتَهَىٰ فَلَهُۥ مَا سَلَفَ وَأَمْرُهُۥٓ إِلَى ٱللَّهِ وَمَنْ عَادَ فَأُو۟لَٰٓئِكَ أَصْحَٰبُ ٱلنَّارِ هُمْ فِيهَا خَٰلِدُونَ ۝٢٧٥

Those who consume interest cannot stand [on the Day of Resurrection] except as one stands who is being beaten by Satan into insanity. That is because they say, "Trade is [just] like interest." But Allāh has permitted trade and has forbidden interest. So whoever has received an admonition from his Lord and desists may have what is past, and his affair rests with Allāh. But whoever returns [to dealing in interest or usury] - those are the companions of the Fire; they will abide eternally therein.

يَمْحَقُ ٱللَّهُ ٱلرِّبَوٰا۟ وَيُرْبِى ٱلصَّدَقَٰتِ وَٱللَّهُ لَا يُحِبُّ كُلَّ كَفَّارٍ أَثِيمٍ ۝٢٧٦

Allāh destroys interest and gives increase for charities. And Allāh does not like every sinning disbeliever.

يَٰٓأَيُّهَا ٱلَّذِينَ ءَامَنُوا۟ ٱتَّقُوا۟ ٱللَّهَ وَذَرُوا۟ مَا بَقِىَ مِنَ ٱلرِّبَوٰٓا۟ إِن كُنتُم مُّؤْمِنِينَ ۝٢٧٨

O you who have believed, fear Allāh and give up what remains [due to you] of interest, if you should be believers.

يَٰٓأَيُّهَا ٱلَّذِينَ ءَامَنُوا۟ لَا تَأْكُلُوا۟ ٱلرِّبَوٰٓا۟ أَضْعَٰفًا مُّضَٰعَفَةً وَٱتَّقُوا۟ ٱللَّهَ لَعَلَّكُمْ تُفْلِحُونَ ۝١٣٠

O you who have believed, do not consume usury, doubled and multiplied, but fear Allāh that you may be successful.

وَأَخْذِهِمُ ٱلرِّبَوٰا۟ وَقَدْ نُهُوا۟ عَنْهُ وَأَكْلِهِمْ أَمْوَٰلَ ٱلنَّاسِ بِٱلْبَٰطِلِ وَأَعْتَدْنَا لِلْكَٰفِرِينَ مِنْهُمْ عَذَابًا أَلِيمًا ۝١٦١

And [for] their taking of usury while they had been forbidden from it, and their consuming of the people's wealth unjustly. And We have prepared for the disbelievers among them a painful punishment.