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Castile

American  
[ka-steel] / kæˈstil /

noun

  1. Spanish Castilla.  a former kingdom comprising most of Spain.

  2. Also called Castile soap.  a variety of mild soap, made from olive oil and sodium hydroxide.

  3. any hard soap made from fats and oils, often partly from olive oil.

Castile British  
/ kæˈstiːl, kasˈtiʎa /

noun

  1. a former kingdom comprising most of modern Spain: originally part of León, it became an independent kingdom in the 10th century and united with Aragon (1469), the first step in the formation of the Spanish state

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Sunday's vote will be followed by regional elections in Andalusia, Aragon, and Castile and Leon during the first half of 2026.

From Barron's • Dec. 21, 2025

Fires have been concentrated in forested areas of northern Portugal and in Spain's north-western regions of Galicia, Asturias and Castile and León.

From BBC • Aug. 27, 2025

In 2016, she represented the family of Philando Castile, a black driver who was shot dead by a police officer in a Twin Cities suburb, in a highly publicized lawsuit.

From Seattle Times • Aug. 21, 2023

One by one they stepped forward to read the names of people who have died after a traffic stop, from Philando Castile in 2016 to Anderson last month.

From Los Angeles Times • Feb. 19, 2023

Blanche of Castile kicks her horse and goes galloping out into the bay.

From "The Inquisitor's Tale" by Adam Gidwitz

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.