Board Thread:Wiki-Related Discussion/@comment-6302057-20151209070336/@comment-2153169-20151209073213

No, no. "Realm" has been used also on-screen to describe these regions. We would never use it if it was not. Elsa used it a lot to describe Arendelle. Anna too. Merida used it for DunBroch. And pretty sure Arthur also used it Camelot.

"Land" has been used for the three kind of locations: the big ones, the regions, and the small kingdoms. That's why we chose to not use it. From all the words we have, "Land" is definitely the more confusing.

"World" has only been used to talk about the BIG locations, like Oz or Wonderland. That's why we chose this one. Way easier for everyone. If we say "World", we know immediatly what kind of place it is. Contrary to "Land".