What is castillian?

Castilian (or Castellano in Spanish) refers to the variety of the Spanish language spoken in the region of Castile in central Spain. It is considered the standard form of the Spanish language and is widely used in Spain and many Spanish-speaking countries.

Castilian Spanish is known for its clear pronunciation and relatively conservative grammar compared to other Spanish dialects. It is the official language of Spain and is used in government, education, and media across the country.

The region of Castile has played a significant role in the history of Spain, being the center of power for much of the country's history. The language spoken in this region eventually became dominant and spread throughout Spain during the medieval period.

In modern times, Castilian Spanish is the most widely spoken dialect of Spanish in the world, with over 460 million speakers. It is also one of the six official languages of the United Nations.