• مَّارِج
• مَرَجَ
• مَرْجَان
• مَّرِيج

Appears 6 times in the Quran.

1. 25:53 وَهُوَ ٱلَّذِى مَرَجَ ٱلْبَحْرَيْنِ هَٰذَا عَذْبٌ فُرَاتٌ وَهَٰذَا مِلْحٌ أُجَاجٌ وَجَعَلَ بَيْنَهُمَا بَرْزَخًا وَحِجْرًا مَّحْجُورًا

   And He it is Who has made two seas to flow freely, the one sweet that subdues thirst by its sweetness, and the other salt that burns by its saltness; and between the two He has made a barrier and inviolable obstruction.
   

2. 50:5 بَلْ كَذَّبُوا۟ بِٱلْحَقِّ لَمَّا جَآءَهُمْ فَهُمْ فِىٓ أَمْرٍ مَّرِيجٍ

   Nay, they rejected the truth when it came to them, so they are (now) in a state of confusion.
   

3. 55:15 وَخَلَقَ ٱلْجَآنَّ مِن مَّارِجٍ مِّن نَّارٍ

   And He created the jinn of a flame of fire.
   

4. 55:19 مَرَجَ ٱلْبَحْرَيْنِ يَلْتَقِيَانِ

   He has made the two seas to flow freely (so that) they meet together:
   

5. 55:22 يَخْرُجُ مِنْهُمَا ٱللُّؤْلُؤُ وَٱلْمَرْجَانُ

   There come forth from them pearls, both large and small.
   

6. 55:58 كَأَنَّهُنَّ ٱلْيَاقُوتُ وَٱلْمَرْجَانُ

   As though they were rubies and pearls.