In a story I've been working on, my editors keep marking "Homeworld" as two separate words, even though most dictionaries, and common opinion, supports the use of a single words. But, after all this times, I'm now questioning whether there's a distinction between the two, and if so, would it be appropriate to use "homeworld" sometimes (like when returning to it) and "home world" at other times (say when discussing your home)?
Any thoughts. Are they merely synonyms, or is it like flammable and inflammable, each word conveying subtle differences between someone's place of origin.
Note: Isn't it amazing that Sci-fi has become so prevalent, that dictionaries routinely list "homeworld" as a regular entry?
Ordinarily I'd check with Grammar Girl, but I'm not sure she's ever ventured an opinion on such 'out of this world' grammar questions. 'D