Illustration of castle
- 1 fortified approach
- 2 moat
- 3 drawbridge
- 4 ward
- 5 angle tower
- 6 donjon or keep
- 7 chapel
- 8 gallery
1
a
: a large fortified building or set of buildings
b
: a massive or imposing house
2
: a retreat safe against intrusion or invasion
3
castled; castling
ˈka-s(ə-)liŋ 
: to move a chess king two squares toward a rook and in the same move the rook to the square next past the king
Examples of castle in a Sentence
Noun
Millionaires built their castles along the lake.
the implacable attackers placed the castle under a prolonged siege
Recent Examples on the Web
Kimberly Zapata, Parents, 3 June 2025
The castle had been the home to the Granthams since the show’s launch in 2011.
—Patrick Hipes, Deadline, 2 June 2025
Tim Ellis, Forbes, 4 Mar. 2025
For example, pawns could not move two squares on their first turn, and there was no similar rule for castling.
—Dylan Loeb McClain, New York Times, 27 May 2023
See All Example Sentences for castle
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Noun
The former, with its iconic castles, characters, and warp pipe entrance, and the latter with dozens of dragons, three rides, and one amazing show do not disappoint.
—Kimberly Zapata, Parents, 3 June 2025
The castle had been the home to the Granthams since the show’s launch in 2011.
—Patrick Hipes, Deadline, 2 June 2025
Verb
The proactive Axar Patel hit an aggressive 27 before being castled by Nathan Ellis.
—Tim Ellis, Forbes, 4 Mar. 2025
For example, pawns could not move two squares on their first turn, and there was no similar rule for castling.
—Dylan Loeb McClain, New York Times, 27 May 2023
See All Example Sentences for castle
Cite this Entry
“Castle.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/castle. Accessed 6 Jun. 2025.
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