Castilian is more used within the context of Spain, where Castilian is spoken besides Aranese, Basque, Catalan/Valencian and Galician (in fact, all five are official recognized languages of Spain). For any other Hispanic country with the exception of Spain, Spanish is the name of the language spoken there. In Mexico, most people speak Spanish.
Castilian is a term that is sometimes used to refer to the Spanish language. Spanish, or Castilian, is primarily spoken in Spain, where it is the official language. It is also spoken widely in many countries in Latin America, as well as in the United States and other parts of the world.
Spanish, specifically, Castilian Spanish.
Latin American (Mexican) Spanish is spoken in Monterrey, Mexico. It subtly differs from Castilian Spanish, mostly in vocabulary and pronunciation. The clearest difference is the second-person pronoun, which is used as usted/ustedesin Mexico, while it is used as vos/vosotros in Spain.
Castilian refers to the Spanish language and is primarily spoken in Spain. It is the official language of Spain and is also widely spoken in many countries in Latin America.
The type of Spanish spoken in Madrid is called Castilian. Castilian is the purest form of the Spanish language. It also is the spoken language in northern Spain.
In Spain. Here Castilian is a synonym of Spanish though some people may see "politic connotations" in the use of either name
Castilian Spanish is spoken by more than 90% of the population, either as a first or second language.
"Castilian" can refer to the Spanish language dialect spoken in the central region of Spain, specifically around the historic region of Castile. It can also refer to someone or something from that region.
The prevalence of the lisp in Castilian Spanish, particularly in Spain, is attributed to King Ferdinand of Castile, who had a minor speech defect. This feature was imitated by the nobility and eventually became a prestigious accent. Over time, it evolved into a distinct feature of the language.
Spain has the most speakers of Basque and Castilian (Spanish) of the countries. As for Catalonia, that is a region within the country of Spain and not a language.
One of the languages spoken in Mexico is Spanish.
The language used in France is French. Spanish (Castilian Spanish actually) is only taught as a second language.