If you held a gun to my head, then I guess I'd call the following dungeon-equivalents in BG3 EA: Grymforge, Ethel's Lair, Ancient Ruins/Crypt, Goblin Camp/Shattered Sanctum, Zhentarim Hideout (maybe?), Arcane Tower, Spider Cave.

I can see the arguments for encompassing more or less in the definition, but that's my stake in the ground.

"You may call it 'nonsense' if you like, but I've heard nonsense, compared with which that would be as sensible as a dictionary!"