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Related to castling: en passant
a. A large fortified building or group of buildings with thick walls, usually dominating the surrounding country.
b. A fortified stronghold converted to residential use.
c. A large ornate building similar to or resembling a fortified stronghold.
2. A place of privacy, security, or refuge.
3. Games See rook2.
v. cas·tled, cas·tling, cas·tles
To move the king in chess from its own square two empty squares to one side and then, in the same move, bring the rook from that side to the square immediately past the new position of the king.
1. To place in or as if in a castle.
2. Games To move (the king in chess) by castling.
[Middle English castel, from Old English and from Norman French, both from Latin castellum, diminutive of castrum; see kes- in Indo-European roots.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Chess & Draughts) chess the act of moving the king two squares laterally on the first rank and placing the nearest rook on the square passed over by the king, either towards the king's side or the queen's side
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
castling[ˈkɑːslɪŋ] N (Chess) → enroque m
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005
n (Chess) → Rochade f
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007