The dizzying, claustrophobic realization that you are confined to one tiny room, while millions of other people are actively living massive, busy lives simultaneously right outside your walls
The Example: "Listening to the distant hum of city traffic in his dark bedroom triggered a sudden, heavy sense of extant."
An entry point to area on the special (military or paramilitary) operation. Used especially when there is something strange with it, eg. the buildings' layout is different than operatives assumed.
It comes from the word 'entrance' spoken with silly french accent.
- That's some strange entant.
- Yeah, we should be entering from the other side of the villa.