citadel
noun
cit·a·del
ˈsi-tə-dᵊl 
-ˌdel
1
: a fortress that commands (see command entry 1 sense 2c) a city
2
: stronghold
… the nation's citadel of health research …—
Constance Holden
Constance Holdena citadel of higher education
Examples of citadel in a Sentence
We visited a medieval citadel in Italy.
a massive stone citadel continues to command the city of Halifax, Nova Scotia
Recent Examples on the Web
One of the oldest citadels in the Middle East, Jerash has seen an unbroken chain of human occupation since the Bronze Age.
—
Hanna Wickes,
Charlotte Observer,
3 June 2026
Paton, 52, was in Peru with his wife to hike the Inca Trail, a popular route that ends at Machu Picchu, a citadel built by the Incas in the 15th century.
—
Sam Peters,
CNN Money,
22 May 2026
In 1928, the original owners took over a hotel that was mere feet across one of the narrow cobblestone streets that make up the citadel and added 48, keeping the neo-Gothic style, including pretty leaded windows.
—
Condé Nast,
Condé Nast Traveler,
28 Apr. 2026
The new vow to speed the globe’s flora and fauna to a second-world citadel represented a remarkable philanthropic expansion of Musk’s overarching Mars missions.
—
Kevin Holden Platt,
Forbes.com,
28 Apr. 2026
See All Example Sentences for citadel
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Hanna Wickes,
Charlotte Observer,
3 June 2026
Paton, 52, was in Peru with his wife to hike the Inca Trail, a popular route that ends at Machu Picchu, a citadel built by the Incas in the 15th century.
—
Sam Peters,
CNN Money,
22 May 2026
In 1928, the original owners took over a hotel that was mere feet across one of the narrow cobblestone streets that make up the citadel and added 48, keeping the neo-Gothic style, including pretty leaded windows.
—
Condé Nast,
Condé Nast Traveler,
28 Apr. 2026
The new vow to speed the globe’s flora and fauna to a second-world citadel represented a remarkable philanthropic expansion of Musk’s overarching Mars missions.
—
Kevin Holden Platt,
Forbes.com,
28 Apr. 2026
See All Example Sentences for citadel
Cite this Entry
“Citadel.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/citadel. Accessed 3 Jul. 2026.
Copy CitationKids Definition
citadel
noun
cit·a·del
ˈsit-əd-ᵊl
-ə-ˌdel
1
: a fortress that sits high above a city
2
: a strong fortress
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