1

castle

play
noun cas·tle \ˈka-səl\

Definition of castle

  1. 1a :  a large fortified building or set of buildingsb :  a massive or imposing house

  2. 2 :  a retreat safe against intrusion or invasion

  3. 3 :  3rook

Examples of castle in a Sentence

  1. Millionaires built their castles along the lake.

  2. the implacable attackers placed the castle under a prolonged siege

Recent Examples of castle from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'castle.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Illustration of castle

Origin and Etymology of castle

Middle English castel, from Old English, from Old French & Latin; Old French dialect (Norman-Picard) castel, from Latin castellum fortress, diminutive of castrum fortified place; perhaps akin to Latin castrare to castrate


2

castle

verb cas·tle

Definition of castle

castled

;

castling

play \ˈka-s(ə-)liŋ\
  1. transitive verb
  2. 1 :  to establish in a castle

  3. 2 :  to move (the chess king) in castling

  4. intransitive verb
  5. :  to move a chess king two squares toward a rook and in the same move the rook to the square next past the king

Recent Examples of castle from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'castle.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of castle

1587



CASTLE Defined for English Language Learners

castle

play
noun

Definition of castle for English Language Learners

  • : a large building usually with high, thick walls and towers that was built in the past to protect against attack

  • : a large expensive house

  • : a piece in the game of chess that looks like a castle tower


CASTLE Defined for Kids

castle

play
noun cas·tle \ˈka-səl\

Definition of castle for Students

  1. 1 :  a large building or group of buildings usually having high walls with towers that was built in the past to protect against attack

  2. 2 :  a large or impressive house



Seen and Heard

What made you want to look up castle? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

lethargy or dullness

Get Word of the Day daily email!

Test Your Vocabulary

Time Traveler Quiz: Which Word Came First?

  • time-traveler-quiz-which-word-came-first
  • Which came first?
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!