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[kas-uh l, kah-suh l] /ˈkæs əl, ˈkɑ səl/
a fortified, usually walled residence, as of a prince or noble in feudal times.
the chief and strongest part of the fortifications of a medieval city.
a strongly fortified, permanently garrisoned stronghold.
a large and stately residence, especially one, with high walls and towers, that imitates the form of a medieval castle.
any place providing security and privacy:
It may be small, but my home is my castle.
Chess. the rook.
verb (used with object), castled, castling.
to place or enclose in or as in a castle.
Chess. to move (the king) in castling.
verb (used without object), castled, castling. Chess.
to move the king two squares horizontally and bring the appropriate rook to the square the king has passed over.
(of the king) to be moved in this manner.
before 1000; Middle English, Old English castel < Latin castellum castellum
Related forms
castlelike, adjective
uncastled, adjective
1. fortress, citadel. 4. palace, château.


[kas-uh l, kah-suh l] /ˈkæs əl, ˈkɑ səl/
Irene (Foote) 1893–1969, born in the U.S., and her husband and partner Vernon, (Vernon Castle Blythe), 1887–1918, born in England, U.S. ballroom dancers.

Castle, The

German Das Schloss. a novel (1926) by Franz Kafka. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples for castle
  • He was buried in the chapel of sainthubert in the castle of amboise.
  • Not all yeomen owned land as many were indentured or feudal servants in a castle.
  • King jon, built the castle of white harbor after driving away sea raiders.
  • He was rewarded with lands of his own, on which a castle named after him was built.
  • Torii and tokugawa both agreed that the castle was indefensible.
  • He later joined castle on stage playing the euphonium in a musical duet.
  • It arrived at the castle of the king their father, and the king marveled over them.
  • Was formed to sell turntables made by castle precision engineering.
  • Enraged, he confronts the beast king and is, quite literally, thrown out of the castle.
  • This is a large home modelled loosely on a castle with towers and garden walls.
British Dictionary definitions for castle


a fortified building or set of buildings, usually permanently garrisoned, as in medieval Europe
any fortified place or structure
a large magnificent house, esp when the present or former home of a nobleman or prince
the citadel and strongest part of the fortifications of a medieval town
(chess) another name for rook2
(chess) to move (the king) two squares laterally on the first rank and place the nearest rook on the square passed over by the king, either towards the king's side (castling short) or the queen's side (castling long)
Word Origin
C11: from Latin castellum, diminutive of castrum fort
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
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Word Origin and History for castle
late O.E. castel, from O.N.Fr. castel, from L. castellum "fortified village," dim. of castrum "fort;" cognate with O.Ir. cather, Welsh caer "town" (and perhaps related to castrare "cut off"). This word had come to O.E. as ceaster and formed the -caster and -chester in place names. Sp. alcazar "castle" is from Arabic al-qasr, from L. castrum. The move in chess is recorded under this name from 1656. In early bibles, castle was used to translate Gk. kome "village," causing much confusion. Castles in Spain translated a 14c. Fr. term (the imaginary castles sometimes stood in Asia or Albania) and probably reflects the hopes of landless knights to establish themselves abroad.
Online Etymology Dictionary, © 2010 Douglas Harper
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castle in the Bible

a military fortress (1 Chr. 11:7), also probably a kind of tower used by the priests for making known anything discovered at a distance (1 Chr. 6:54). Castles are also mentioned (Gen. 25:16) as a kind of watch-tower, from which shepherds kept watch over their flocks by night. The "castle" into which the chief captain commanded Paul to be brought was the quarters of the Roman soldiers in the fortress of Antonia (so called by Herod after his patron Mark Antony), which was close to the north-west corner of the temple (Acts 21:34), which it commanded.

Easton's 1897 Bible Dictionary
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