Castile is a region in central Spain that has been inhabited since pre-Roman times. It is one of the 17 autonomous communities of Spain and its capital is Madrid. The crossword solutions for the term Castile are SOAP (4 letters), GATO (4 letters), AVILA (5 letters), LEON (4 letters), and EURO (4 letters). SOAP is a cleansing agent made from natural oils and fats, GATO is the Spanish word for cat, AVILA is a city in Castile, LEON is a province in Castile, and EURO is the currency of the European Union.