One thing I struggle with as a GM is my vocabulary of dungeon description. This is especially true when it comes to irregular areas.
Take a cavern area like this:
How do I describe that? (And those circles with dots in the middle are columns - floor to ceiling pillars of stone.
Try it from A, B, or C. Or all three.
When I do, what the players put down on the map - or how they describe their placement on the eventual hexmap for a fight - is at best kind-of close. Most of the time it's way, way off. Yet for actual delvers in those situations, it should be much clearer what they see even if the size and orientation to other areas is not.
My own style comes with two inherent complications:
No Compass Directions. I use relative orientation - "it opens out to your left" or "it's a dozen feet or so ahead of you as you face in from the cave mouth" - and not "North" or "Southeast."
Rough sizes - I give sizes in rough sizes, not specific. Not "ten feet" or "30 feet" but more like "3-4 yards" or "about 10 yards." And how far "about" is depends - I don't always count, I'll eyeball and estimate. A hallway 110' long might be 35 yards, 40 yards, or "a bit more than yards" depending on how I eyeball the map and choose my words.
Neither of those make it easier. But given linear hallways and flat-sized rooms, the players tend to nail the map pretty closely (or close enough to navigate from reliably.)
So I realize I do this poorly. Yet maps-are-life kind of gamers back in the day used to deal with this. How? What was the vocabulary and style used to explain caverns in a way that made it clear what you really see?
Folks who play online, with fog-of-war and maps in a VTT, I don't think you can help me here. You don't have to do what I'm struggling to do. But I'm not discouraging you from commenting . . . just know "show the players the map!" means a lot of maintaining multiple copies of the map and having to have them ready to show piecemeal to the players. It's easier to share snacks and harder to share maps face-to-face, I have found.