Meaning & use

Fortress

noun·Everyday

Last updated

A large, strongly built structure designed for military defense; figuratively, anything heavily protected or secure.

See it in a sentence

The medieval fortress withstood countless sieges over the centuries.

The company's headquarters felt like a fortress with its layers of security.

A note on using this word

Often used metaphorically to describe something that is well-defended or impregnable, not just literal military structures.

Words with a similar meaning

strongholdcitadelbastion

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