@Rpground
What about Rainbow Dash, most call her Dash, not Rainbow.
Also Japanese names are the other way around, given name is after family name so by the logic you just said then Tenchi of Tenchi Muyo is named Masaki as by the Japanese order that is first.
Ok seriously… you can’t have 2 names as a first name! EVERYPONY calls her “Applebloom” not “Apple Bloom” otherwise people would instead refer her to first name only being “Apple”.
Applejack is one name,why? Because it would be weird is people were constantly referring her by her ENTIRE name instead of just a first name bases.
It’s not hard to figure this out…do you go around talk to your friend and refer them to their first and last name all the time?
“Hey Steven Glow! What’s up? Wanna catch a movie later today Steven Glow? It’s that sequel to your favorite movie,what do you say Steven Glow?”
See? It’s annoying and awkward.
Thus her name is Applebloom,as in her FIRST SINGULAR NAME.