Appears 6 times in the Quran.
21:103 لَا يَحْزُنُهُمُ ٱلْفَزَعُ ٱلْأَكْبَرُ وَتَتَلَقَّىٰهُمُ ٱلْمَلَٰٓئِكَةُ هَٰذَا يَوْمُكُمُ ٱلَّذِى كُنتُمْ تُوعَدُونَ
The great fearful event shall not grieve them, and the angels shall meet them: This is your day which you were promised.
27:87 وَيَوْمَ يُنفَخُ فِى ٱلصُّورِ فَفَزِعَ مَن فِى ٱلسَّمَٰوَٰتِ وَمَن فِى ٱلْأَرْضِ إِلَّا مَن شَآءَ ٱللَّهُ وَكُلٌّ أَتَوْهُ دَٰخِرِينَ
And on the day when the trumpet shall be blown, then those who are in the heavens and those who are in the earth shall be terrified except such as Allah please, and all shall come to him abased.
Whoever brings good, he shall have better than it; and they shall be secure from terror on the day.
34:23 وَلَا تَنفَعُ ٱلشَّفَٰعَةُ عِندَهُۥٓ إِلَّا لِمَنْ أَذِنَ لَهُۥ حَتَّىٰٓ إِذَا فُزِّعَ عَن قُلُوبِهِمْ قَالُوا۟ مَاذَا قَالَ رَبُّكُمْ قَالُوا۟ ٱلْحَقَّ وَهُوَ ٱلْعَلِىُّ ٱلْكَبِيرُ
And intercession will not avail aught with Him save of him whom He permits. Until when fear shall be removed from their hearts, They shall say: What is it that your Lord said? They shall say: The truth. And He is the Most High, the Great.
And could you see when they shall become terrified, but (then) there shall be no escape and they shall be seized upon from a near place
38:22 إِذْ دَخَلُوا۟ عَلَىٰ دَاوُۥدَ فَفَزِعَ مِنْهُمْ قَالُوا۟ لَا تَخَفْ خَصْمَانِ بَغَىٰ بَعْضُنَا عَلَىٰ بَعْضٍ فَٱحْكُم بَيْنَنَا بِٱلْحَقِّ وَلَا تُشْطِطْ وَٱهْدِنَآ إِلَىٰ سَوَآءِ ٱلصِّرَٰطِ
When they entered in upon Dawood and he was frightened at them, they said: Fear not; two litigants, of whom one has acted wrongfully towards the other, therefore decide between us with justice, and do not act unjustly, and guide us to the right way.