[krapp]

What the word "dragon" even describes turns out to be incredibly vague across cultures. Some dragons have wings, some don't. Some have four limbs, some have two limbs, a few might even have none. Some have scales, some have feathers. Some are serpentine, some not. Some are vast eldritch beings that circle the world-tree, some hide in tombs and hoard piles of gold. Dragons don't even always breathe fire.

The only commonalities dragons seem to possess across cultures are being terrifyingly dangerous and at least vaguely reptilian (edit: and maybe flight but I'm not sure.) There's enough room in the margins to include a vast assortment of otherwise unrelated mythological beings and say "these are all dragons, these are all basically the same thing."