: a fortified place : stronghold
especially
: a large and permanent fortification sometimes including a town
Examples of fortress in a Sentence
the boys built a snow fortress and then challenged the neighborhood kids to an in-your-face snowball fight
Recent Examples on the Web
After the fall of the Roman Empire, the Colosseum was used as a Christian sanctuary, and later as a fortress.
—
Anne Doran, ARTnews.com, 10 Apr. 2026
Inflamed by Ratansen’s adviser’s account of Padmavati’s beauty, Alauddin Khalji storms the fortress by treachery rather than valor.
—Encyclopedia Britannica, 9 Apr. 2026
In October, archaeologists found a fortress that was built along the ancient military road mentioned in the Book of Exodus.
—Andrea Margolis, FOXNews.com, 9 Apr. 2026
But this fortress mentality is a strategic misstep.
—Ana Paula Assis, Fortune, 9 Apr. 2026
See All Example Sentences for fortress
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Anne Doran, ARTnews.com, 10 Apr. 2026
Inflamed by Ratansen’s adviser’s account of Padmavati’s beauty, Alauddin Khalji storms the fortress by treachery rather than valor.
—Encyclopedia Britannica, 9 Apr. 2026
In October, archaeologists found a fortress that was built along the ancient military road mentioned in the Book of Exodus.
—Andrea Margolis, FOXNews.com, 9 Apr. 2026
But this fortress mentality is a strategic misstep.
—Ana Paula Assis, Fortune, 9 Apr. 2026
See All Example Sentences for fortress
Cite this Entry
“Fortress.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fortress. Accessed 18 Apr. 2026.
Copy CitationKids Definition
fortress
noun
for·tress
ˈfȯr-trəs 
: a fortified place
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