What does « Fūt » mean in the Quran?

[Remember] when you [fled and] climbed [the mountain] without looking aside at anyone while the Messenger was calling you from behind. So Allah repaid you with distress upon distress so you would not grieve for that which had escaped you [of victory and spoils of war] or [for] that which had befallen you [of injury and death]. And Allah is [fully] Acquainted with what you do.

And if you could see when they are terrified but there is no escape, and they will be seized from a place nearby.

In order that you not despair over what has eluded you and not exult [in pride] over what He has given you. And Allah does not like everyone self-deluded and boastful -

And if you have lost any of your wives to the disbelievers and you subsequently obtain [something], then give those whose wives have gone the equivalent of what they had spent. And fear Allah, in whom you are believers.

[And] who created seven heavens in layers. You do not see in the creation of the Most Merciful any inconsistency. So return [your] vision [to the sky]; do you see any breaks?