Is Castilian Spanish different from Spanish?

Related questions

1. What race is Mexican?
2. Is Spain Mediterranean?
3. Who conquered the Iberian peninsula?
4. What was Spain called before it was called Spain?
5. Is Iberian an ethnicity?
6. Are Portuguese Hispanic or Latino?
7. Is Spanish considered Hispanic?
8. Why do Americans call Deutschland?
9. What ethnicity is Spanish?
10. What nationality is Iberian peninsula?

Tags

1. #spanish
2. #refers
3. #often
4. #comes
5. #castile
6. #actually
7. #castellano
8. #spain
9. #language
10. #synonymously
11. #central
12. #there
13. #province
14. #called
15. #castilian
16. #original