fortress
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Alcatraz island - nicknamed "the Rock" because it was regarded as an impregnable fortress - is home to the shuttered federal penitentiary that housed some of the most dangerous criminals in the US.
From BBC
The embossed crosses on multiple turrets present a towering fortress with absolute castle stature.
From Literature
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One worry about how defensible Netflix’s fortress is comes from how fast it got here.
“The building is a fortress, it’s got thick concrete walls,” he said.
From Los Angeles Times
The Maduros tried to escape into a safe place, the US president explained, describing it as a military "fortress".
From BBC
From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.