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Castilian

American  
[ka-stil-yuhn] / kæˈstɪl yən /

noun

  1. the dialect of Spanish spoken in Castile.

  2. the official standard form of the Spanish language as spoken in Spain, based on this dialect.

  3. a native or inhabitant of Castile.


adjective

  1. of or relating to Castile.

Castilian British  
/ kæˈstɪljən /

noun

  1. the Spanish dialect of Castile; the standard form of European Spanish

  2. a native or inhabitant of Castile

"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

adjective

  1. denoting, relating to, or characteristic of Castile, its inhabitants, or the standard form of European Spanish

"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

Etymology

Origin of Castilian

First recorded in 1520–30; Castile + -ian