1,400 new words in our dictionary! — Parasocial, glow-up, promposal & more
1,400 new words in our dictionary! — More

castle

noun

ˈka-səl How to pronounce castle (audio)
Definition of castlenext
1
as in fortress
a structure or place from which one can resist attack the implacable attackers placed the castle under a prolonged siege

Synonyms & Similar Words

Relevance
2
as in mansion
a large impressive residence the mining tycoon built a magnificent castle on the hill overlooking the town

Synonyms & Similar Words

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of castle At the top of Sleeping Giant, there have been reported of a man dressed in all black wandering the grounds near where the castle is. — Kaitlyn Keegan, Hartford Courant, 25 Sep. 2026 The castle is still off-limits to the public, and even the road to the site is closed. — Anne Ewbank, Sacbee.com, 25 Sep. 2026 After her husband died in 1604, Báthory moved to western Slovakia, where she was later accused of torturing and killing hundreds of young women inside her castle. — Caroline Blair, PEOPLE, 25 Sep. 2026 Like in every season before, the Traitors are not chosen by production before their arrival at the castle. — Rebecca Alter, Vulture, 24 Sep. 2026 See All Example Sentences for castle
Recent Examples of Synonyms for castle
  1. fortress
  2. mansion
  3. stronghold
  4. manor
  5. citadel
  6. hacienda
  7. fortification
  8. palace
Noun
  • The legacy data center strategy relied on secrecy—unmarked, fortress-like facilities hidden behind high security fences with minimal community outreach.
    — Kevin Brown, Forbes.com, 24 Sep. 2026
  • Opponents say the president is going too far in his hardening of the White House, turning it into something closer to a fortress.
    — Collin Binkley, Los Angeles Times, 23 Sep. 2026
Definition of fortress
Noun
  • Sequestered in a lavish mansion, in each of their rooms is a mysterious welcome gift — a box.
    — Peter White, Deadline, 23 Sep. 2026
  • Some mansions include private tunnels under A1A so residents can reach their docks without crossing the road.
    — Miami Herald, Miami Herald, 22 Sep. 2026
Definition of mansion
Noun
  • Rulon Jeffs ordered his followers to move to Hildale, Utah, and Colorado City, Arizona, a location known as Short Creek on the border of those two states, that had been a stronghold of the Mormon fundamentalist movement since the 1920s.
    — Frannie Comstock, Encyclopedia Britannica, 22 Sep. 2026
  • The Houthis descended from their stronghold in northern Yemen, taking over the capital of Sanaa in September 2014 and forcing the country's government into exile in Saudi Arabia.
    — Tucker Reals, CBS News, 21 Sep. 2026
Definition of stronghold
Noun
  • The two set out with Ross, a raucous party boy, and the three drive to a secluded, bucolic manor.
    — Ryan Lattanzio, IndieWire, 16 Sep. 2026
  • In a California town called Anzar in the late-19th century, Paulette is living with a local magnate’s eccentric son who’s fascinated by the tramps gathering outside his manor.
    — Jasmine Vojdani, Vulture, 3 Sep. 2026
Definition of manor
Noun
  • And yet Trump wants to turn the White House and an outpost on the Potomac into similar citadels, with little regard for why America’s capital city was named for one of its greatest examples of unadorned republican virtue.
    — Tom Nichols, The Atlantic, 20 Sep. 2026
  • Castellón To the north, Castellón unfolds as a mountainous marvel where medieval citadels, golden beaches, and tiny fishing villages create a landscape of contrasts, with the scent of citrus perfuming the air.
    — Condé Nast Traveler, Condé Nast Traveler, 3 Sep. 2026
Definition of citadel
Noun
  • Under Spanish rule, able-bodied Malay men, from teenagers to adults, were required to perform 40 days of unpaid annual labor on roads, bridges, churches, forts, piers, plantations, haciendas and mines.
    — Naman Ramachandran, Variety, 5 Sep. 2026
  • Situated at the end of a quiet cul-de-sac, Marilyn purchased the 1929 Spanish Colonial Revival-style hacienda for $75,000 in early 1962.
    — Michael Goldstein, Forbes.com, 29 July 2026
Definition of hacienda
Noun
  • In its northern section, excavators found a main street running east to west; this is intersected by a road running south to north, indicating some level of urban planning within the fortification.
    — Anne Doran, ARTnews.com, 18 Sep. 2026
  • Pancho opposed the fortification of the town, although most of his siblings supported it.
    — Kate Linthicum, Los Angeles Times, 6 Sep. 2026
Definition of fortification
Noun
  • The coast is peppered with grande dame hotels housed in former convents, centuries-old palaces, and pastel villas where everyone from Maria Callas and Coco Chanel to Liza Minnelli and Elizabeth Taylor have holed up.
    — Lane Nieset, Condé Nast Traveler, 25 Sep. 2026
  • Then as now, productions are allowed to film only on Mondays, when the palace is closed to visitors.
    — Ben Croll, Variety, 25 Sep. 2026
Definition of palace

Phrases Containing castle

Browse Nearby Words

cast-iron
castle
castle in Spain
See all Nearby Words

Cite this Entry

“Castle.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/castle. Accessed 29 Sep. 2026.

Copy Citation

More from Merriam-Webster on castle

Britannica.com: Encyclopedia article about castle

Last Updated: - Updated example sentences
Love words? Need even more definitions?

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

More from Merriam-Webster

Word of the Day

Listen to the pronunciation of argot

See Definitions and Examples »

Popular in Grammar & Usage

See More

Do You Need a New Language Peeve?

More Commonly Mispronounced Words

Merriam-Webster’s Great Big List of Words You Love to Hate

'A' or 'an'? What about before 'h'? An Indefinite Article Guide

Why is '-ed' sometimes pronounced at the end of a word?
See More

Popular in Wordplay

See More

7 Great Ways to Say 'Great'

The Longest Long Words List

9 Words That Sound Like Insults But Aren't

12 Lovely and Unusual Words for the Natural World

Why do we 'bury the lede?'
See More

Popular

See More

Do You Need a New Language Peeve?

7 Great Ways to Say 'Great'

The Longest Long Words List
See More

Games & Quizzes

See All
Play Quordle: Guess all four words in a limited number of tries. Each of your guesses must be a real 5-letter word.
Quordle Can you solve 4 words at once?
Play Blossom: Solve today's spelling word game by finding as many words as you can using just 7 letters. Longer words score more points.
Blossom Pick the best words!
Play Missing Letter: a crossword with a twist. Each of the 25 puzzle words start with a different letter of the alphabet. Which letter is missing?
The Missing Letter A daily crossword with a twist
image of the words cracker fly and sale arranged in a triangle with the word fire in the middle
Triple Play Quiz Find the word that pairs with each of the three g...
See All