A theoretical megastructure usually depicted as a ring-shaped habitat of various sizes. It’s depictions change from telling to telling, with some Ringworlds being “Small” rings around a planet, “Medium” rings being large structures built in orbit of gas giants, and “Large” rings being built around Stars.

n. The birth name of somebody who has changed their name. Most commonly attributed to trans people, but can be attributed to any person who has changed their name. (sometimes written as two words: dead name)

v. 1. To call somebody by their deadname.
v. 2. To out somebody's deadname to the public.